661205160

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7951}}^1$

素因数の和:7989

約数の個数: 256

約数和(自身を含む): 2748211200

約数和(自身を除く): 2087006040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 27, 28, 30, 33, 35, 36, 40, 42, 44, 45, 54, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 108, 110, 120, 126, 132, 135, 140, 154, 165, 168, 180, 189, 198, 210, 216, 220, 231, 252, 264, 270, 280, 297, 308, 315, 330, 360, 378, 385, 396, 420, 440, 462, 495, 504, 540, 594, 616, 630, 660, 693, 756, 770, 792, 840, 924, 945, 990, 1080, 1155, 1188, 1260, 1320, 1386, 1485, 1512, 1540, 1848, 1890, 1980, 2079, 2310, 2376, 2520, 2772, 2970, 3080, 3465, 3780, 3960, 4158, 4620, 5544, 5940, 6930, 7560, 7951, 8316, 9240, 10395, 11880, 13860, 15902, 16632, 20790, 23853, 27720, 31804, 39755, 41580, 47706, 55657, 63608, 71559, 79510, 83160, 87461, 95412, 111314, 119265, 143118, 159020, 166971, 174922, 190824, 214677, 222628, 238530, 262383, 278285, 286236, 318040, 333942, 349844, 357795, 429354, 437305, 445256, 477060, 500913, 524766, 556570, 572472, 612227, 667884, 699688, 715590, 787149, 834855, 858708, 874610, 954120, 1001826, 1049532, 1073385, 1113140, 1224454, 1311915, 1335768, 1431180, 1502739, 1574298, 1669710, 1717416, 1749220, 1836681, 2003652, 2099064, 2146770, 2226280, 2361447, 2448908, 2504565, 2623830, 2862360, 3005478, 3061135, 3148596, 3339420, 3498440, 3673362, 3935745, 4007304, 4293540, 4722894, 4897816, 5009130, 5247660, 5510043, 6010956, 6122270, 6297192, 6678840, 7346724, 7513695, 7871490, 8587080, 9183405, 9445788, 10018260, 10495320, 11020086, 11807235, 12021912, 12244540, 14693448, 15027390, 15742980, 16530129, 18366810, 18891576, 20036520, 22040172, 23614470, 24489080, 27550215, 30054780, 31485960, 33060258, 36733620, 44080344, 47228940, 55100430, 60109560, 66120516, 73467240, 82650645, 94457880, 110200860, 132241032, 165301290, 220401720, 330602580, 661205160]

約数ペア:

[(1, 661205160), (2, 330602580), (3, 220401720), (4, 165301290), (5, 132241032), (6, 110200860), (7, 94457880), (8, 82650645), (9, 73467240), (10, 66120516), (11, 60109560), (12, 55100430), (14, 47228940), (15, 44080344), (18, 36733620), (20, 33060258), (21, 31485960), (22, 30054780), (24, 27550215), (27, 24489080), (28, 23614470), (30, 22040172), (33, 20036520), (35, 18891576), (36, 18366810), (40, 16530129), (42, 15742980), (44, 15027390), (45, 14693448), (54, 12244540), (55, 12021912), (56, 11807235), (60, 11020086), (63, 10495320), (66, 10018260), (70, 9445788), (72, 9183405), (77, 8587080), (84, 7871490), (88, 7513695), (90, 7346724), (99, 6678840), (105, 6297192), (108, 6122270), (110, 6010956), (120, 5510043), (126, 5247660), (132, 5009130), (135, 4897816), (140, 4722894), (154, 4293540), (165, 4007304), (168, 3935745), (180, 3673362), (189, 3498440), (198, 3339420), (210, 3148596), (216, 3061135), (220, 3005478), (231, 2862360), (252, 2623830), (264, 2504565), (270, 2448908), (280, 2361447), (297, 2226280), (308, 2146770), (315, 2099064), (330, 2003652), (360, 1836681), (378, 1749220), (385, 1717416), (396, 1669710), (420, 1574298), (440, 1502739), (462, 1431180), (495, 1335768), (504, 1311915), (540, 1224454), (594, 1113140), (616, 1073385), (630, 1049532), (660, 1001826), (693, 954120), (756, 874610), (770, 858708), (792, 834855), (840, 787149), (924, 715590), (945, 699688), (990, 667884), (1080, 612227), (1155, 572472), (1188, 556570), (1260, 524766), (1320, 500913), (1386, 477060), (1485, 445256), (1512, 437305), (1540, 429354), (1848, 357795), (1890, 349844), (1980, 333942), (2079, 318040), (2310, 286236), (2376, 278285), (2520, 262383), (2772, 238530), (2970, 222628), (3080, 214677), (3465, 190824), (3780, 174922), (3960, 166971), (4158, 159020), (4620, 143118), (5544, 119265), (5940, 111314), (6930, 95412), (7560, 87461), (7951, 83160), (8316, 79510), (9240, 71559), (10395, 63608), (11880, 55657), (13860, 47706), (15902, 41580), (16632, 39755), (20790, 31804), (23853, 27720)]