256205280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1009}}^1$

素因数の和:1073

約数の個数: 144

約数和(自身を含む): 844497360

約数和(自身を除く): 588292080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 92, 96, 115, 120, 138, 160, 184, 230, 240, 276, 345, 368, 460, 480, 529, 552, 690, 736, 920, 1009, 1058, 1104, 1380, 1587, 1840, 2018, 2116, 2208, 2645, 2760, 3027, 3174, 3680, 4036, 4232, 5045, 5290, 5520, 6054, 6348, 7935, 8072, 8464, 10090, 10580, 11040, 12108, 12696, 15135, 15870, 16144, 16928, 20180, 21160, 23207, 24216, 25392, 30270, 31740, 32288, 40360, 42320, 46414, 48432, 50784, 60540, 63480, 69621, 80720, 84640, 92828, 96864, 116035, 121080, 126960, 139242, 161440, 185656, 232070, 242160, 253920, 278484, 348105, 371312, 464140, 484320, 533761, 556968, 696210, 742624, 928280, 1067522, 1113936, 1392420, 1601283, 1856560, 2135044, 2227872, 2668805, 2784840, 3202566, 3713120, 4270088, 5337610, 5569680, 6405132, 8006415, 8540176, 10675220, 11139360, 12810264, 16012830, 17080352, 21350440, 25620528, 32025660, 42700880, 51241056, 64051320, 85401760, 128102640, 256205280]

約数ペア:

[(1, 256205280), (2, 128102640), (3, 85401760), (4, 64051320), (5, 51241056), (6, 42700880), (8, 32025660), (10, 25620528), (12, 21350440), (15, 17080352), (16, 16012830), (20, 12810264), (23, 11139360), (24, 10675220), (30, 8540176), (32, 8006415), (40, 6405132), (46, 5569680), (48, 5337610), (60, 4270088), (69, 3713120), (80, 3202566), (92, 2784840), (96, 2668805), (115, 2227872), (120, 2135044), (138, 1856560), (160, 1601283), (184, 1392420), (230, 1113936), (240, 1067522), (276, 928280), (345, 742624), (368, 696210), (460, 556968), (480, 533761), (529, 484320), (552, 464140), (690, 371312), (736, 348105), (920, 278484), (1009, 253920), (1058, 242160), (1104, 232070), (1380, 185656), (1587, 161440), (1840, 139242), (2018, 126960), (2116, 121080), (2208, 116035), (2645, 96864), (2760, 92828), (3027, 84640), (3174, 80720), (3680, 69621), (4036, 63480), (4232, 60540), (5045, 50784), (5290, 48432), (5520, 46414), (6054, 42320), (6348, 40360), (7935, 32288), (8072, 31740), (8464, 30270), (10090, 25392), (10580, 24216), (11040, 23207), (12108, 21160), (12696, 20180), (15135, 16928), (15870, 16144)]