89679980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2633}}^1$

素因数の和:2786

約数の個数: 48

約数和(自身を含む): 204440544

約数和(自身を除く): 114760564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 131, 260, 262, 524, 655, 1310, 1703, 2620, 2633, 3406, 5266, 6812, 8515, 10532, 13165, 17030, 26330, 34060, 34229, 52660, 68458, 136916, 171145, 342290, 344923, 684580, 689846, 1379692, 1724615, 3449230, 4483999, 6898460, 8967998, 17935996, 22419995, 44839990, 89679980]

約数ペア:

[(1, 89679980), (2, 44839990), (4, 22419995), (5, 17935996), (10, 8967998), (13, 6898460), (20, 4483999), (26, 3449230), (52, 1724615), (65, 1379692), (130, 689846), (131, 684580), (260, 344923), (262, 342290), (524, 171145), (655, 136916), (1310, 68458), (1703, 52660), (2620, 34229), (2633, 34060), (3406, 26330), (5266, 17030), (6812, 13165), (8515, 10532)]