31161780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:247

約数の個数: 192

約数和(自身を含む): 109509120

約数和(自身を除く): 78347340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 23, 26, 27, 30, 36, 39, 45, 46, 52, 54, 60, 65, 69, 78, 90, 92, 108, 115, 117, 130, 135, 138, 156, 180, 193, 195, 207, 230, 234, 260, 270, 276, 299, 345, 351, 386, 390, 414, 460, 468, 540, 579, 585, 598, 621, 690, 702, 772, 780, 828, 897, 965, 1035, 1158, 1170, 1196, 1242, 1380, 1404, 1495, 1737, 1755, 1794, 1930, 2070, 2316, 2340, 2484, 2509, 2691, 2895, 2990, 3105, 3474, 3510, 3588, 3860, 4140, 4439, 4485, 5018, 5211, 5382, 5790, 5980, 6210, 6948, 7020, 7527, 8073, 8685, 8878, 8970, 10036, 10422, 10764, 11580, 12420, 12545, 13317, 13455, 15054, 16146, 17370, 17756, 17940, 20844, 22195, 22581, 25090, 26055, 26634, 26910, 30108, 32292, 34740, 37635, 39951, 40365, 44390, 45162, 50180, 52110, 53268, 53820, 57707, 66585, 67743, 75270, 79902, 80730, 88780, 90324, 104220, 112905, 115414, 119853, 133170, 135486, 150540, 159804, 161460, 173121, 199755, 225810, 230828, 239706, 266340, 270972, 288535, 338715, 346242, 399510, 451620, 479412, 519363, 577070, 599265, 677430, 692484, 799020, 865605, 1038726, 1154140, 1198530, 1354860, 1558089, 1731210, 2077452, 2397060, 2596815, 3116178, 3462420, 5193630, 6232356, 7790445, 10387260, 15580890, 31161780]

約数ペア:

[(1, 31161780), (2, 15580890), (3, 10387260), (4, 7790445), (5, 6232356), (6, 5193630), (9, 3462420), (10, 3116178), (12, 2596815), (13, 2397060), (15, 2077452), (18, 1731210), (20, 1558089), (23, 1354860), (26, 1198530), (27, 1154140), (30, 1038726), (36, 865605), (39, 799020), (45, 692484), (46, 677430), (52, 599265), (54, 577070), (60, 519363), (65, 479412), (69, 451620), (78, 399510), (90, 346242), (92, 338715), (108, 288535), (115, 270972), (117, 266340), (130, 239706), (135, 230828), (138, 225810), (156, 199755), (180, 173121), (193, 161460), (195, 159804), (207, 150540), (230, 135486), (234, 133170), (260, 119853), (270, 115414), (276, 112905), (299, 104220), (345, 90324), (351, 88780), (386, 80730), (390, 79902), (414, 75270), (460, 67743), (468, 66585), (540, 57707), (579, 53820), (585, 53268), (598, 52110), (621, 50180), (690, 45162), (702, 44390), (772, 40365), (780, 39951), (828, 37635), (897, 34740), (965, 32292), (1035, 30108), (1158, 26910), (1170, 26634), (1196, 26055), (1242, 25090), (1380, 22581), (1404, 22195), (1495, 20844), (1737, 17940), (1755, 17756), (1794, 17370), (1930, 16146), (2070, 15054), (2316, 13455), (2340, 13317), (2484, 12545), (2509, 12420), (2691, 11580), (2895, 10764), (2990, 10422), (3105, 10036), (3474, 8970), (3510, 8878), (3588, 8685), (3860, 8073), (4140, 7527), (4439, 7020), (4485, 6948), (5018, 6210), (5211, 5980), (5382, 5790)]