90865840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2131}}^1$

素因数の和:2198

約数の個数: 80

約数和(自身を含む): 233172576

約数和(自身を除く): 142306736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 41, 52, 65, 80, 82, 104, 130, 164, 205, 208, 260, 328, 410, 520, 533, 656, 820, 1040, 1066, 1640, 2131, 2132, 2665, 3280, 4262, 4264, 5330, 8524, 8528, 10655, 10660, 17048, 21310, 21320, 27703, 34096, 42620, 42640, 55406, 85240, 87371, 110812, 138515, 170480, 174742, 221624, 277030, 349484, 436855, 443248, 554060, 698968, 873710, 1108120, 1135823, 1397936, 1747420, 2216240, 2271646, 3494840, 4543292, 5679115, 6989680, 9086584, 11358230, 18173168, 22716460, 45432920, 90865840]

約数ペア:

[(1, 90865840), (2, 45432920), (4, 22716460), (5, 18173168), (8, 11358230), (10, 9086584), (13, 6989680), (16, 5679115), (20, 4543292), (26, 3494840), (40, 2271646), (41, 2216240), (52, 1747420), (65, 1397936), (80, 1135823), (82, 1108120), (104, 873710), (130, 698968), (164, 554060), (205, 443248), (208, 436855), (260, 349484), (328, 277030), (410, 221624), (520, 174742), (533, 170480), (656, 138515), (820, 110812), (1040, 87371), (1066, 85240), (1640, 55406), (2131, 42640), (2132, 42620), (2665, 34096), (3280, 27703), (4262, 21320), (4264, 21310), (5330, 17048), (8524, 10660), (8528, 10655)]