31711440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1861}}^1$

素因数の和:1948

約数の個数: 80

約数和(自身を含む): 99743616

約数和(自身を除く): 68032176

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 71, 80, 120, 142, 213, 240, 284, 355, 426, 568, 710, 852, 1065, 1136, 1420, 1704, 1861, 2130, 2840, 3408, 3722, 4260, 5583, 5680, 7444, 8520, 9305, 11166, 14888, 17040, 18610, 22332, 27915, 29776, 37220, 44664, 55830, 74440, 89328, 111660, 132131, 148880, 223320, 264262, 396393, 446640, 528524, 660655, 792786, 1057048, 1321310, 1585572, 1981965, 2114096, 2642620, 3171144, 3963930, 5285240, 6342288, 7927860, 10570480, 15855720, 31711440]

約数ペア:

[(1, 31711440), (2, 15855720), (3, 10570480), (4, 7927860), (5, 6342288), (6, 5285240), (8, 3963930), (10, 3171144), (12, 2642620), (15, 2114096), (16, 1981965), (20, 1585572), (24, 1321310), (30, 1057048), (40, 792786), (48, 660655), (60, 528524), (71, 446640), (80, 396393), (120, 264262), (142, 223320), (213, 148880), (240, 132131), (284, 111660), (355, 89328), (426, 74440), (568, 55830), (710, 44664), (852, 37220), (1065, 29776), (1136, 27915), (1420, 22332), (1704, 18610), (1861, 17040), (2130, 14888), (2840, 11166), (3408, 9305), (3722, 8520), (4260, 7444), (5583, 5680)]