31551520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:243

約数の個数: 192

約数和(自身を含む): 100590336

約数和(自身を除く): 69038816

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 160, 176, 182, 197, 208, 220, 224, 260, 280, 286, 308, 352, 364, 385, 394, 416, 440, 455, 520, 560, 572, 616, 715, 728, 770, 788, 880, 910, 985, 1001, 1040, 1120, 1144, 1232, 1379, 1430, 1456, 1540, 1576, 1760, 1820, 1970, 2002, 2080, 2167, 2288, 2464, 2561, 2758, 2860, 2912, 3080, 3152, 3640, 3940, 4004, 4334, 4576, 5005, 5122, 5516, 5720, 6160, 6304, 6895, 7280, 7880, 8008, 8668, 10010, 10244, 10835, 11032, 11440, 12320, 12805, 13790, 14560, 15169, 15760, 16016, 17336, 17927, 20020, 20488, 21670, 22064, 22880, 25610, 27580, 28171, 30338, 31520, 32032, 34672, 35854, 40040, 40976, 43340, 44128, 51220, 55160, 56342, 60676, 69344, 71708, 75845, 80080, 81952, 86680, 89635, 102440, 110320, 112684, 121352, 140855, 143416, 151690, 160160, 173360, 179270, 197197, 204880, 220640, 225368, 242704, 281710, 286832, 303380, 346720, 358540, 394394, 409760, 450736, 485408, 563420, 573664, 606760, 717080, 788788, 901472, 985985, 1126840, 1213520, 1434160, 1577576, 1971970, 2253680, 2427040, 2868320, 3155152, 3943940, 4507360, 6310304, 7887880, 15775760, 31551520]

約数ペア:

[(1, 31551520), (2, 15775760), (4, 7887880), (5, 6310304), (7, 4507360), (8, 3943940), (10, 3155152), (11, 2868320), (13, 2427040), (14, 2253680), (16, 1971970), (20, 1577576), (22, 1434160), (26, 1213520), (28, 1126840), (32, 985985), (35, 901472), (40, 788788), (44, 717080), (52, 606760), (55, 573664), (56, 563420), (65, 485408), (70, 450736), (77, 409760), (80, 394394), (88, 358540), (91, 346720), (104, 303380), (110, 286832), (112, 281710), (130, 242704), (140, 225368), (143, 220640), (154, 204880), (160, 197197), (176, 179270), (182, 173360), (197, 160160), (208, 151690), (220, 143416), (224, 140855), (260, 121352), (280, 112684), (286, 110320), (308, 102440), (352, 89635), (364, 86680), (385, 81952), (394, 80080), (416, 75845), (440, 71708), (455, 69344), (520, 60676), (560, 56342), (572, 55160), (616, 51220), (715, 44128), (728, 43340), (770, 40976), (788, 40040), (880, 35854), (910, 34672), (985, 32032), (1001, 31520), (1040, 30338), (1120, 28171), (1144, 27580), (1232, 25610), (1379, 22880), (1430, 22064), (1456, 21670), (1540, 20488), (1576, 20020), (1760, 17927), (1820, 17336), (1970, 16016), (2002, 15760), (2080, 15169), (2167, 14560), (2288, 13790), (2464, 12805), (2561, 12320), (2758, 11440), (2860, 11032), (2912, 10835), (3080, 10244), (3152, 10010), (3640, 8668), (3940, 8008), (4004, 7880), (4334, 7280), (4576, 6895), (5005, 6304), (5122, 6160), (5516, 5720)]