256864920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7159}}^1$

素因数の和:7209

約数の個数: 128

約数和(自身を含む): 866073600

約数和(自身を除く): 609208680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 897, 920, 1196, 1380, 1495, 1560, 1794, 2392, 2760, 2990, 3588, 4485, 5980, 7159, 7176, 8970, 11960, 14318, 17940, 21477, 28636, 35795, 35880, 42954, 57272, 71590, 85908, 93067, 107385, 143180, 164657, 171816, 186134, 214770, 279201, 286360, 329314, 372268, 429540, 465335, 493971, 558402, 658628, 744536, 823285, 859080, 930670, 987942, 1116804, 1317256, 1396005, 1646570, 1861340, 1975884, 2140541, 2233608, 2469855, 2792010, 3293140, 3722680, 3951768, 4281082, 4939710, 5584020, 6421623, 6586280, 8562164, 9879420, 10702705, 11168040, 12843246, 17124328, 19758840, 21405410, 25686492, 32108115, 42810820, 51372984, 64216230, 85621640, 128432460, 256864920]

約数ペア:

[(1, 256864920), (2, 128432460), (3, 85621640), (4, 64216230), (5, 51372984), (6, 42810820), (8, 32108115), (10, 25686492), (12, 21405410), (13, 19758840), (15, 17124328), (20, 12843246), (23, 11168040), (24, 10702705), (26, 9879420), (30, 8562164), (39, 6586280), (40, 6421623), (46, 5584020), (52, 4939710), (60, 4281082), (65, 3951768), (69, 3722680), (78, 3293140), (92, 2792010), (104, 2469855), (115, 2233608), (120, 2140541), (130, 1975884), (138, 1861340), (156, 1646570), (184, 1396005), (195, 1317256), (230, 1116804), (260, 987942), (276, 930670), (299, 859080), (312, 823285), (345, 744536), (390, 658628), (460, 558402), (520, 493971), (552, 465335), (598, 429540), (690, 372268), (780, 329314), (897, 286360), (920, 279201), (1196, 214770), (1380, 186134), (1495, 171816), (1560, 164657), (1794, 143180), (2392, 107385), (2760, 93067), (2990, 85908), (3588, 71590), (4485, 57272), (5980, 42954), (7159, 35880), (7176, 35795), (8970, 28636), (11960, 21477), (14318, 17940)]