31604820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40519}}^1$

素因数の和:40544

約数の個数: 48

約数和(自身を含む): 95303040

約数和(自身を除く): 63698220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 40519, 81038, 121557, 162076, 202595, 243114, 405190, 486228, 526747, 607785, 810380, 1053494, 1215570, 1580241, 2106988, 2431140, 2633735, 3160482, 5267470, 6320964, 7901205, 10534940, 15802410, 31604820]

約数ペア:

[(1, 31604820), (2, 15802410), (3, 10534940), (4, 7901205), (5, 6320964), (6, 5267470), (10, 3160482), (12, 2633735), (13, 2431140), (15, 2106988), (20, 1580241), (26, 1215570), (30, 1053494), (39, 810380), (52, 607785), (60, 526747), (65, 486228), (78, 405190), (130, 243114), (156, 202595), (195, 162076), (260, 121557), (390, 81038), (780, 40519)]