18375968

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 39344256

約数和(自身を除く): 20968288

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 163, 208, 271, 326, 416, 542, 652, 1084, 1304, 2119, 2168, 2608, 3523, 4238, 4336, 5216, 7046, 8476, 8672, 14092, 16952, 28184, 33904, 44173, 56368, 67808, 88346, 112736, 176692, 353384, 574249, 706768, 1148498, 1413536, 2296996, 4593992, 9187984, 18375968]

約数ペア:

[(1, 18375968), (2, 9187984), (4, 4593992), (8, 2296996), (13, 1413536), (16, 1148498), (26, 706768), (32, 574249), (52, 353384), (104, 176692), (163, 112736), (208, 88346), (271, 67808), (326, 56368), (416, 44173), (542, 33904), (652, 28184), (1084, 16952), (1304, 14092), (2119, 8672), (2168, 8476), (2608, 7046), (3523, 5216), (4238, 4336)]