643485128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{1621}}^1$

素因数の和:1998

約数の個数: 64

約数和(自身を含む): 1422429120

約数和(自身を除く): 778943992

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 347, 572, 694, 1144, 1388, 1621, 2776, 3242, 3817, 4511, 6484, 7634, 9022, 12968, 15268, 17831, 18044, 21073, 30536, 35662, 36088, 42146, 49621, 71324, 84292, 99242, 142648, 168584, 198484, 231803, 396968, 463606, 562487, 927212, 1124974, 1854424, 2249948, 4499896, 6187357, 7312331, 12374714, 14624662, 24749428, 29249324, 49498856, 58498648, 80435641, 160871282, 321742564, 643485128]

約数ペア:

[(1, 643485128), (2, 321742564), (4, 160871282), (8, 80435641), (11, 58498648), (13, 49498856), (22, 29249324), (26, 24749428), (44, 14624662), (52, 12374714), (88, 7312331), (104, 6187357), (143, 4499896), (286, 2249948), (347, 1854424), (572, 1124974), (694, 927212), (1144, 562487), (1388, 463606), (1621, 396968), (2776, 231803), (3242, 198484), (3817, 168584), (4511, 142648), (6484, 99242), (7634, 84292), (9022, 71324), (12968, 49621), (15268, 42146), (17831, 36088), (18044, 35662), (21073, 30536)]