51158120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 125072640

約数和(自身を除く): 73914520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 520, 524, 655, 751, 1048, 1310, 1502, 1703, 2620, 3004, 3406, 3755, 5240, 6008, 6812, 7510, 8515, 9763, 13624, 15020, 17030, 19526, 30040, 34060, 39052, 48815, 68120, 78104, 97630, 98381, 195260, 196762, 390520, 393524, 491905, 787048, 983810, 1278953, 1967620, 2557906, 3935240, 5115812, 6394765, 10231624, 12789530, 25579060, 51158120]

約数ペア:

[(1, 51158120), (2, 25579060), (4, 12789530), (5, 10231624), (8, 6394765), (10, 5115812), (13, 3935240), (20, 2557906), (26, 1967620), (40, 1278953), (52, 983810), (65, 787048), (104, 491905), (130, 393524), (131, 390520), (260, 196762), (262, 195260), (520, 98381), (524, 97630), (655, 78104), (751, 68120), (1048, 48815), (1310, 39052), (1502, 34060), (1703, 30040), (2620, 19526), (3004, 17030), (3406, 15020), (3755, 13624), (5240, 9763), (6008, 8515), (6812, 7510)]