81228928

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1917

約数の個数: 64

約数和(自身を含む): 182327040

約数和(自身を除く): 101098112

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 248, 341, 352, 496, 682, 704, 992, 1364, 1408, 1861, 1984, 2728, 3722, 3968, 5456, 7444, 10912, 14888, 20471, 21824, 29776, 40942, 43648, 57691, 59552, 81884, 115382, 119104, 163768, 230764, 238208, 327536, 461528, 634601, 655072, 923056, 1269202, 1310144, 1846112, 2538404, 2620288, 3692224, 5076808, 7384448, 10153616, 20307232, 40614464, 81228928]

約数ペア:

[(1, 81228928), (2, 40614464), (4, 20307232), (8, 10153616), (11, 7384448), (16, 5076808), (22, 3692224), (31, 2620288), (32, 2538404), (44, 1846112), (62, 1310144), (64, 1269202), (88, 923056), (124, 655072), (128, 634601), (176, 461528), (248, 327536), (341, 238208), (352, 230764), (496, 163768), (682, 119104), (704, 115382), (992, 81884), (1364, 59552), (1408, 57691), (1861, 43648), (1984, 40942), (2728, 29776), (3722, 21824), (3968, 20471), (5456, 14888), (7444, 10912)]