26388440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1637}}^1$

素因数の和:1692

約数の個数: 64

約数和(自身を含む): 66044160

約数和(自身を除く): 39655720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 1637, 2015, 3224, 3274, 4030, 6548, 8060, 8185, 13096, 16120, 16370, 21281, 32740, 42562, 50747, 65480, 85124, 101494, 106405, 170248, 202988, 212810, 253735, 405976, 425620, 507470, 659711, 851240, 1014940, 1319422, 2029880, 2638844, 3298555, 5277688, 6597110, 13194220, 26388440]

約数ペア:

[(1, 26388440), (2, 13194220), (4, 6597110), (5, 5277688), (8, 3298555), (10, 2638844), (13, 2029880), (20, 1319422), (26, 1014940), (31, 851240), (40, 659711), (52, 507470), (62, 425620), (65, 405976), (104, 253735), (124, 212810), (130, 202988), (155, 170248), (248, 106405), (260, 101494), (310, 85124), (403, 65480), (520, 50747), (620, 42562), (806, 32740), (1240, 21281), (1612, 16370), (1637, 16120), (2015, 13096), (3224, 8185), (3274, 8060), (4030, 6548)]