81505216

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{601}}^1$

素因数の和:789

約数の個数: 56

約数和(自身を含む): 175538384

約数和(自身を除く): 94033168

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 163, 208, 326, 416, 601, 652, 832, 1202, 1304, 2119, 2404, 2608, 4238, 4808, 5216, 7813, 8476, 9616, 10432, 15626, 16952, 19232, 31252, 33904, 38464, 62504, 67808, 97963, 125008, 135616, 195926, 250016, 391852, 500032, 783704, 1273519, 1567408, 2547038, 3134816, 5094076, 6269632, 10188152, 20376304, 40752608, 81505216]

約数ペア:

[(1, 81505216), (2, 40752608), (4, 20376304), (8, 10188152), (13, 6269632), (16, 5094076), (26, 3134816), (32, 2547038), (52, 1567408), (64, 1273519), (104, 783704), (163, 500032), (208, 391852), (326, 250016), (416, 195926), (601, 135616), (652, 125008), (832, 97963), (1202, 67808), (1304, 62504), (2119, 38464), (2404, 33904), (2608, 31252), (4238, 19232), (4808, 16952), (5216, 15626), (7813, 10432), (8476, 9616)]