31815680

素因数分解:

$2^{11}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 82555200

約数和(自身を除く): 50739520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 239, 256, 260, 320, 416, 478, 512, 520, 640, 832, 956, 1024, 1040, 1195, 1280, 1664, 1912, 2048, 2080, 2390, 2560, 3107, 3328, 3824, 4160, 4780, 5120, 6214, 6656, 7648, 8320, 9560, 10240, 12428, 13312, 15296, 15535, 16640, 19120, 24856, 26624, 30592, 31070, 33280, 38240, 49712, 61184, 62140, 66560, 76480, 99424, 122368, 124280, 133120, 152960, 198848, 244736, 248560, 305920, 397696, 489472, 497120, 611840, 795392, 994240, 1223680, 1590784, 1988480, 2447360, 3181568, 3976960, 6363136, 7953920, 15907840, 31815680]

約数ペア:

[(1, 31815680), (2, 15907840), (4, 7953920), (5, 6363136), (8, 3976960), (10, 3181568), (13, 2447360), (16, 1988480), (20, 1590784), (26, 1223680), (32, 994240), (40, 795392), (52, 611840), (64, 497120), (65, 489472), (80, 397696), (104, 305920), (128, 248560), (130, 244736), (160, 198848), (208, 152960), (239, 133120), (256, 124280), (260, 122368), (320, 99424), (416, 76480), (478, 66560), (512, 62140), (520, 61184), (640, 49712), (832, 38240), (956, 33280), (1024, 31070), (1040, 30592), (1195, 26624), (1280, 24856), (1664, 19120), (1912, 16640), (2048, 15535), (2080, 15296), (2390, 13312), (2560, 12428), (3107, 10240), (3328, 9560), (3824, 8320), (4160, 7648), (4780, 6656), (5120, 6214)]