256639440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15061}}^1$

素因数の和:15148

約数の個数: 80

約数和(自身を含む): 806841216

約数和(自身を除く): 550201776

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, 2130, 2840, 3408, 4260, 5680, 8520, 15061, 17040, 30122, 45183, 60244, 75305, 90366, 120488, 150610, 180732, 225915, 240976, 301220, 361464, 451830, 602440, 722928, 903660, 1069331, 1204880, 1807320, 2138662, 3207993, 3614640, 4277324, 5346655, 6415986, 8554648, 10693310, 12831972, 16039965, 17109296, 21386620, 25663944, 32079930, 42773240, 51327888, 64159860, 85546480, 128319720, 256639440]

約数ペア:

[(1, 256639440), (2, 128319720), (3, 85546480), (4, 64159860), (5, 51327888), (6, 42773240), (8, 32079930), (10, 25663944), (12, 21386620), (15, 17109296), (16, 16039965), (20, 12831972), (24, 10693310), (30, 8554648), (40, 6415986), (48, 5346655), (60, 4277324), (71, 3614640), (80, 3207993), (120, 2138662), (142, 1807320), (213, 1204880), (240, 1069331), (284, 903660), (355, 722928), (426, 602440), (568, 451830), (710, 361464), (852, 301220), (1065, 240976), (1136, 225915), (1420, 180732), (1704, 150610), (2130, 120488), (2840, 90366), (3408, 75305), (4260, 60244), (5680, 45183), (8520, 30122), (15061, 17040)]