31791760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:441

約数の個数: 160

約数和(自身を含む): 99493632

約数和(自身を除く): 67701872

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 260, 280, 286, 308, 364, 385, 397, 440, 455, 520, 560, 572, 616, 715, 728, 770, 794, 880, 910, 1001, 1040, 1144, 1232, 1430, 1456, 1540, 1588, 1820, 1985, 2002, 2288, 2779, 2860, 3080, 3176, 3640, 3970, 4004, 4367, 5005, 5161, 5558, 5720, 6160, 6352, 7280, 7940, 8008, 8734, 10010, 10322, 11116, 11440, 13895, 15880, 16016, 17468, 20020, 20644, 21835, 22232, 25805, 27790, 30569, 31760, 34936, 36127, 40040, 41288, 43670, 44464, 51610, 55580, 56771, 61138, 69872, 72254, 80080, 82576, 87340, 103220, 111160, 113542, 122276, 144508, 152845, 174680, 180635, 206440, 222320, 227084, 244552, 283855, 289016, 305690, 349360, 361270, 397397, 412880, 454168, 489104, 567710, 578032, 611380, 722540, 794794, 908336, 1135420, 1222760, 1445080, 1589588, 1986985, 2270840, 2445520, 2890160, 3179176, 3973970, 4541680, 6358352, 7947940, 15895880, 31791760]

約数ペア:

[(1, 31791760), (2, 15895880), (4, 7947940), (5, 6358352), (7, 4541680), (8, 3973970), (10, 3179176), (11, 2890160), (13, 2445520), (14, 2270840), (16, 1986985), (20, 1589588), (22, 1445080), (26, 1222760), (28, 1135420), (35, 908336), (40, 794794), (44, 722540), (52, 611380), (55, 578032), (56, 567710), (65, 489104), (70, 454168), (77, 412880), (80, 397397), (88, 361270), (91, 349360), (104, 305690), (110, 289016), (112, 283855), (130, 244552), (140, 227084), (143, 222320), (154, 206440), (176, 180635), (182, 174680), (208, 152845), (220, 144508), (260, 122276), (280, 113542), (286, 111160), (308, 103220), (364, 87340), (385, 82576), (397, 80080), (440, 72254), (455, 69872), (520, 61138), (560, 56771), (572, 55580), (616, 51610), (715, 44464), (728, 43670), (770, 41288), (794, 40040), (880, 36127), (910, 34936), (1001, 31760), (1040, 30569), (1144, 27790), (1232, 25805), (1430, 22232), (1456, 21835), (1540, 20644), (1588, 20020), (1820, 17468), (1985, 16016), (2002, 15880), (2288, 13895), (2779, 11440), (2860, 11116), (3080, 10322), (3176, 10010), (3640, 8734), (3970, 8008), (4004, 7940), (4367, 7280), (5005, 6352), (5161, 6160), (5558, 5720)]