31308160

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 83280960

約数和(自身を除く): 51972800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 53, 64, 65, 71, 80, 104, 106, 128, 130, 142, 160, 208, 212, 260, 265, 284, 320, 355, 416, 424, 520, 530, 568, 640, 689, 710, 832, 848, 923, 1040, 1060, 1136, 1378, 1420, 1664, 1696, 1846, 2080, 2120, 2272, 2756, 2840, 3392, 3445, 3692, 3763, 4160, 4240, 4544, 4615, 5512, 5680, 6784, 6890, 7384, 7526, 8320, 8480, 9088, 9230, 11024, 11360, 13780, 14768, 15052, 16960, 18460, 18815, 22048, 22720, 27560, 29536, 30104, 33920, 36920, 37630, 44096, 45440, 48919, 55120, 59072, 60208, 73840, 75260, 88192, 97838, 110240, 118144, 120416, 147680, 150520, 195676, 220480, 240832, 244595, 295360, 301040, 391352, 440960, 481664, 489190, 590720, 602080, 782704, 978380, 1204160, 1565408, 1956760, 2408320, 3130816, 3913520, 6261632, 7827040, 15654080, 31308160]

約数ペア:

[(1, 31308160), (2, 15654080), (4, 7827040), (5, 6261632), (8, 3913520), (10, 3130816), (13, 2408320), (16, 1956760), (20, 1565408), (26, 1204160), (32, 978380), (40, 782704), (52, 602080), (53, 590720), (64, 489190), (65, 481664), (71, 440960), (80, 391352), (104, 301040), (106, 295360), (128, 244595), (130, 240832), (142, 220480), (160, 195676), (208, 150520), (212, 147680), (260, 120416), (265, 118144), (284, 110240), (320, 97838), (355, 88192), (416, 75260), (424, 73840), (520, 60208), (530, 59072), (568, 55120), (640, 48919), (689, 45440), (710, 44096), (832, 37630), (848, 36920), (923, 33920), (1040, 30104), (1060, 29536), (1136, 27560), (1378, 22720), (1420, 22048), (1664, 18815), (1696, 18460), (1846, 16960), (2080, 15052), (2120, 14768), (2272, 13780), (2756, 11360), (2840, 11024), (3392, 9230), (3445, 9088), (3692, 8480), (3763, 8320), (4160, 7526), (4240, 7384), (4544, 6890), (4615, 6784), (5512, 5680)]