20041560

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1$

素因数の和:279

約数の個数: 256

約数和(自身を含む): 83635200

約数和(自身を除く): 63593640

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, 241, 252, 264, 270, 280, 297, 308, 315, 330, 360, 378, 385, 396, 420, 440, 462, 482, 495, 504, 540, 594, 616, 630, 660, 693, 723, 756, 770, 792, 840, 924, 945, 964, 990, 1080, 1155, 1188, 1205, 1260, 1320, 1386, 1446, 1485, 1512, 1540, 1687, 1848, 1890, 1928, 1980, 2079, 2169, 2310, 2376, 2410, 2520, 2651, 2772, 2892, 2970, 3080, 3374, 3465, 3615, 3780, 3960, 4158, 4338, 4620, 4820, 5061, 5302, 5544, 5784, 5940, 6507, 6748, 6930, 7230, 7560, 7953, 8316, 8435, 8676, 9240, 9640, 10122, 10395, 10604, 10845, 11880, 13014, 13255, 13496, 13860, 14460, 15183, 15906, 16632, 16870, 17352, 18557, 20244, 20790, 21208, 21690, 23859, 25305, 26028, 26510, 27720, 28920, 30366, 31812, 32535, 33740, 37114, 39765, 40488, 41580, 43380, 45549, 47718, 50610, 52056, 53020, 55671, 60732, 63624, 65070, 67480, 71577, 74228, 75915, 79530, 83160, 86760, 91098, 92785, 95436, 101220, 106040, 111342, 119295, 121464, 130140, 143154, 148456, 151830, 159060, 167013, 182196, 185570, 190872, 202440, 222684, 227745, 238590, 260280, 278355, 286308, 303660, 318120, 334026, 357885, 364392, 371140, 445368, 455490, 477180, 501039, 556710, 572616, 607320, 668052, 715770, 742280, 835065, 910980, 954360, 1002078, 1113420, 1336104, 1431540, 1670130, 1821960, 2004156, 2226840, 2505195, 2863080, 3340260, 4008312, 5010390, 6680520, 10020780, 20041560]

約数ペア:

[(1, 20041560), (2, 10020780), (3, 6680520), (4, 5010390), (5, 4008312), (6, 3340260), (7, 2863080), (8, 2505195), (9, 2226840), (10, 2004156), (11, 1821960), (12, 1670130), (14, 1431540), (15, 1336104), (18, 1113420), (20, 1002078), (21, 954360), (22, 910980), (24, 835065), (27, 742280), (28, 715770), (30, 668052), (33, 607320), (35, 572616), (36, 556710), (40, 501039), (42, 477180), (44, 455490), (45, 445368), (54, 371140), (55, 364392), (56, 357885), (60, 334026), (63, 318120), (66, 303660), (70, 286308), (72, 278355), (77, 260280), (84, 238590), (88, 227745), (90, 222684), (99, 202440), (105, 190872), (108, 185570), (110, 182196), (120, 167013), (126, 159060), (132, 151830), (135, 148456), (140, 143154), (154, 130140), (165, 121464), (168, 119295), (180, 111342), (189, 106040), (198, 101220), (210, 95436), (216, 92785), (220, 91098), (231, 86760), (241, 83160), (252, 79530), (264, 75915), (270, 74228), (280, 71577), (297, 67480), (308, 65070), (315, 63624), (330, 60732), (360, 55671), (378, 53020), (385, 52056), (396, 50610), (420, 47718), (440, 45549), (462, 43380), (482, 41580), (495, 40488), (504, 39765), (540, 37114), (594, 33740), (616, 32535), (630, 31812), (660, 30366), (693, 28920), (723, 27720), (756, 26510), (770, 26028), (792, 25305), (840, 23859), (924, 21690), (945, 21208), (964, 20790), (990, 20244), (1080, 18557), (1155, 17352), (1188, 16870), (1205, 16632), (1260, 15906), (1320, 15183), (1386, 14460), (1446, 13860), (1485, 13496), (1512, 13255), (1540, 13014), (1687, 11880), (1848, 10845), (1890, 10604), (1928, 10395), (1980, 10122), (2079, 9640), (2169, 9240), (2310, 8676), (2376, 8435), (2410, 8316), (2520, 7953), (2651, 7560), (2772, 7230), (2892, 6930), (2970, 6748), (3080, 6507), (3374, 5940), (3465, 5784), (3615, 5544), (3780, 5302), (3960, 5061), (4158, 4820), (4338, 4620)]