15978560

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:220

約数の個数: 112

約数和(自身を含む): 43013376

約数和(自身を除く): 27034816

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, 167, 184, 208, 230, 260, 299, 320, 334, 368, 416, 460, 520, 598, 668, 736, 832, 835, 920, 1040, 1196, 1336, 1472, 1495, 1670, 1840, 2080, 2171, 2392, 2672, 2990, 3340, 3680, 3841, 4160, 4342, 4784, 5344, 5980, 6680, 7360, 7682, 8684, 9568, 10688, 10855, 11960, 13360, 15364, 17368, 19136, 19205, 21710, 23920, 26720, 30728, 34736, 38410, 43420, 47840, 49933, 53440, 61456, 69472, 76820, 86840, 95680, 99866, 122912, 138944, 153640, 173680, 199732, 245824, 249665, 307280, 347360, 399464, 499330, 614560, 694720, 798928, 998660, 1229120, 1597856, 1997320, 3195712, 3994640, 7989280, 15978560]

約数ペア:

[(1, 15978560), (2, 7989280), (4, 3994640), (5, 3195712), (8, 1997320), (10, 1597856), (13, 1229120), (16, 998660), (20, 798928), (23, 694720), (26, 614560), (32, 499330), (40, 399464), (46, 347360), (52, 307280), (64, 249665), (65, 245824), (80, 199732), (92, 173680), (104, 153640), (115, 138944), (130, 122912), (160, 99866), (167, 95680), (184, 86840), (208, 76820), (230, 69472), (260, 61456), (299, 53440), (320, 49933), (334, 47840), (368, 43420), (416, 38410), (460, 34736), (520, 30728), (598, 26720), (668, 23920), (736, 21710), (832, 19205), (835, 19136), (920, 17368), (1040, 15364), (1196, 13360), (1336, 11960), (1472, 10855), (1495, 10688), (1670, 9568), (1840, 8684), (2080, 7682), (2171, 7360), (2392, 6680), (2672, 5980), (2990, 5344), (3340, 4784), (3680, 4342), (3841, 4160)]