266669440

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13441}}^1$

素因数の和:13491

約数の個数: 64

約数和(自身を含む): 658120320

約数和(自身を除く): 391450880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 9920, 13441, 19840, 26882, 53764, 67205, 107528, 134410, 215056, 268820, 416671, 430112, 537640, 833342, 860224, 1075280, 1666684, 1720448, 2083355, 2150560, 3333368, 4166710, 4301120, 6666736, 8333420, 8602240, 13333472, 16666840, 26666944, 33333680, 53333888, 66667360, 133334720, 266669440]

約数ペア:

[(1, 266669440), (2, 133334720), (4, 66667360), (5, 53333888), (8, 33333680), (10, 26666944), (16, 16666840), (20, 13333472), (31, 8602240), (32, 8333420), (40, 6666736), (62, 4301120), (64, 4166710), (80, 3333368), (124, 2150560), (128, 2083355), (155, 1720448), (160, 1666684), (248, 1075280), (310, 860224), (320, 833342), (496, 537640), (620, 430112), (640, 416671), (992, 268820), (1240, 215056), (1984, 134410), (2480, 107528), (3968, 67205), (4960, 53764), (9920, 26882), (13441, 19840)]