15900440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:444

約数の個数: 64

約数和(自身を含む): 38556000

約数和(自身を除く): 22655560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 67, 68, 85, 134, 136, 170, 268, 335, 340, 349, 536, 670, 680, 698, 1139, 1340, 1396, 1745, 2278, 2680, 2792, 3490, 4556, 5695, 5933, 6980, 9112, 11390, 11866, 13960, 22780, 23383, 23732, 29665, 45560, 46766, 47464, 59330, 93532, 116915, 118660, 187064, 233830, 237320, 397511, 467660, 795022, 935320, 1590044, 1987555, 3180088, 3975110, 7950220, 15900440]

約数ペア:

[(1, 15900440), (2, 7950220), (4, 3975110), (5, 3180088), (8, 1987555), (10, 1590044), (17, 935320), (20, 795022), (34, 467660), (40, 397511), (67, 237320), (68, 233830), (85, 187064), (134, 118660), (136, 116915), (170, 93532), (268, 59330), (335, 47464), (340, 46766), (349, 45560), (536, 29665), (670, 23732), (680, 23383), (698, 22780), (1139, 13960), (1340, 11866), (1396, 11390), (1745, 9112), (2278, 6980), (2680, 5933), (2792, 5695), (3490, 4556)]