28344440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 68571360

約数和(自身を除く): 40226920

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 571, 584, 680, 730, 1142, 1241, 1460, 2284, 2482, 2855, 2920, 4568, 4964, 5710, 6205, 9707, 9928, 11420, 12410, 19414, 22840, 24820, 38828, 41683, 48535, 49640, 77656, 83366, 97070, 166732, 194140, 208415, 333464, 388280, 416830, 708611, 833660, 1417222, 1667320, 2834444, 3543055, 5668888, 7086110, 14172220, 28344440]

約数ペア:

[(1, 28344440), (2, 14172220), (4, 7086110), (5, 5668888), (8, 3543055), (10, 2834444), (17, 1667320), (20, 1417222), (34, 833660), (40, 708611), (68, 416830), (73, 388280), (85, 333464), (136, 208415), (146, 194140), (170, 166732), (292, 97070), (340, 83366), (365, 77656), (571, 49640), (584, 48535), (680, 41683), (730, 38828), (1142, 24820), (1241, 22840), (1460, 19414), (2284, 12410), (2482, 11420), (2855, 9928), (2920, 9707), (4568, 6205), (4964, 5710)]