18274880

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:244

約数の個数: 112

約数和(自身を含む): 49158144

約数和(自身を除く): 30883264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 130, 160, 184, 191, 208, 230, 260, 299, 320, 368, 382, 416, 460, 520, 598, 736, 764, 832, 920, 955, 1040, 1196, 1472, 1495, 1528, 1840, 1910, 2080, 2392, 2483, 2990, 3056, 3680, 3820, 4160, 4393, 4784, 4966, 5980, 6112, 7360, 7640, 8786, 9568, 9932, 11960, 12224, 12415, 15280, 17572, 19136, 19864, 21965, 23920, 24830, 30560, 35144, 39728, 43930, 47840, 49660, 57109, 61120, 70288, 79456, 87860, 95680, 99320, 114218, 140576, 158912, 175720, 198640, 228436, 281152, 285545, 351440, 397280, 456872, 571090, 702880, 794560, 913744, 1142180, 1405760, 1827488, 2284360, 3654976, 4568720, 9137440, 18274880]

約数ペア:

[(1, 18274880), (2, 9137440), (4, 4568720), (5, 3654976), (8, 2284360), (10, 1827488), (13, 1405760), (16, 1142180), (20, 913744), (23, 794560), (26, 702880), (32, 571090), (40, 456872), (46, 397280), (52, 351440), (64, 285545), (65, 281152), (80, 228436), (92, 198640), (104, 175720), (115, 158912), (130, 140576), (160, 114218), (184, 99320), (191, 95680), (208, 87860), (230, 79456), (260, 70288), (299, 61120), (320, 57109), (368, 49660), (382, 47840), (416, 43930), (460, 39728), (520, 35144), (598, 30560), (736, 24830), (764, 23920), (832, 21965), (920, 19864), (955, 19136), (1040, 17572), (1196, 15280), (1472, 12415), (1495, 12224), (1528, 11960), (1840, 9932), (1910, 9568), (2080, 8786), (2392, 7640), (2483, 7360), (2990, 6112), (3056, 5980), (3680, 4966), (3820, 4784), (4160, 4393)]