18001256

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 42201600

約数和(自身を除く): 24200344

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 79, 91, 104, 158, 182, 313, 316, 364, 553, 626, 632, 728, 1027, 1106, 1252, 2054, 2191, 2212, 2504, 4069, 4108, 4382, 4424, 7189, 8138, 8216, 8764, 14378, 16276, 17528, 24727, 28483, 28756, 32552, 49454, 56966, 57512, 98908, 113932, 173089, 197816, 227864, 321451, 346178, 642902, 692356, 1285804, 1384712, 2250157, 2571608, 4500314, 9000628, 18001256]

約数ペア:

[(1, 18001256), (2, 9000628), (4, 4500314), (7, 2571608), (8, 2250157), (13, 1384712), (14, 1285804), (26, 692356), (28, 642902), (52, 346178), (56, 321451), (79, 227864), (91, 197816), (104, 173089), (158, 113932), (182, 98908), (313, 57512), (316, 56966), (364, 49454), (553, 32552), (626, 28756), (632, 28483), (728, 24727), (1027, 17528), (1106, 16276), (1252, 14378), (2054, 8764), (2191, 8216), (2212, 8138), (2504, 7189), (4069, 4424), (4108, 4382)]