128522120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{52673}}^1$

素因数の和:52745

約数の個数: 32

約数和(自身を含む): 293920920

約数和(自身を除く): 165398800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 52673, 105346, 210692, 263365, 421384, 526730, 1053460, 2106920, 3213053, 6426106, 12852212, 16065265, 25704424, 32130530, 64261060, 128522120]

約数ペア:

[(1, 128522120), (2, 64261060), (4, 32130530), (5, 25704424), (8, 16065265), (10, 12852212), (20, 6426106), (40, 3213053), (61, 2106920), (122, 1053460), (244, 526730), (305, 421384), (488, 263365), (610, 210692), (1220, 105346), (2440, 52673)]