1640226720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{1289}}^1$

素因数の和:1559

約数の個数: 192

約数和(自身を含む): 5664193920

約数和(自身を除く): 4023967200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 220, 240, 241, 264, 330, 352, 440, 480, 482, 528, 660, 723, 880, 964, 1056, 1205, 1289, 1320, 1446, 1760, 1928, 2410, 2578, 2640, 2651, 2892, 3615, 3856, 3867, 4820, 5156, 5280, 5302, 5784, 6445, 7230, 7712, 7734, 7953, 9640, 10312, 10604, 11568, 12890, 13255, 14179, 14460, 15468, 15906, 19280, 19335, 20624, 21208, 23136, 25780, 26510, 28358, 28920, 30936, 31812, 38560, 38670, 39765, 41248, 42416, 42537, 51560, 53020, 56716, 57840, 61872, 63624, 70895, 77340, 79530, 84832, 85074, 103120, 106040, 113432, 115680, 123744, 127248, 141790, 154680, 159060, 170148, 206240, 212080, 212685, 226864, 254496, 283580, 309360, 310649, 318120, 340296, 424160, 425370, 453728, 567160, 618720, 621298, 636240, 680592, 850740, 931947, 1134320, 1242596, 1272480, 1361184, 1553245, 1701480, 1863894, 2268640, 2485192, 3106490, 3402960, 3417139, 3727788, 4659735, 4970384, 6212980, 6805920, 6834278, 7455576, 9319470, 9940768, 10251417, 12425960, 13668556, 14911152, 17085695, 18638940, 20502834, 24851920, 27337112, 29822304, 34171390, 37277880, 41005668, 49703840, 51257085, 54674224, 68342780, 74555760, 82011336, 102514170, 109348448, 136685560, 149111520, 164022672, 205028340, 273371120, 328045344, 410056680, 546742240, 820113360, 1640226720]

約数ペア:

[(1, 1640226720), (2, 820113360), (3, 546742240), (4, 410056680), (5, 328045344), (6, 273371120), (8, 205028340), (10, 164022672), (11, 149111520), (12, 136685560), (15, 109348448), (16, 102514170), (20, 82011336), (22, 74555760), (24, 68342780), (30, 54674224), (32, 51257085), (33, 49703840), (40, 41005668), (44, 37277880), (48, 34171390), (55, 29822304), (60, 27337112), (66, 24851920), (80, 20502834), (88, 18638940), (96, 17085695), (110, 14911152), (120, 13668556), (132, 12425960), (160, 10251417), (165, 9940768), (176, 9319470), (220, 7455576), (240, 6834278), (241, 6805920), (264, 6212980), (330, 4970384), (352, 4659735), (440, 3727788), (480, 3417139), (482, 3402960), (528, 3106490), (660, 2485192), (723, 2268640), (880, 1863894), (964, 1701480), (1056, 1553245), (1205, 1361184), (1289, 1272480), (1320, 1242596), (1446, 1134320), (1760, 931947), (1928, 850740), (2410, 680592), (2578, 636240), (2640, 621298), (2651, 618720), (2892, 567160), (3615, 453728), (3856, 425370), (3867, 424160), (4820, 340296), (5156, 318120), (5280, 310649), (5302, 309360), (5784, 283580), (6445, 254496), (7230, 226864), (7712, 212685), (7734, 212080), (7953, 206240), (9640, 170148), (10312, 159060), (10604, 154680), (11568, 141790), (12890, 127248), (13255, 123744), (14179, 115680), (14460, 113432), (15468, 106040), (15906, 103120), (19280, 85074), (19335, 84832), (20624, 79530), (21208, 77340), (23136, 70895), (25780, 63624), (26510, 61872), (28358, 57840), (28920, 56716), (30936, 53020), (31812, 51560), (38560, 42537), (38670, 42416), (39765, 41248)]