31619640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20269}}^1$

素因数の和:20296

約数の個数: 64

約数和(自身を含む): 102160800

約数和(自身を除く): 70541160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20269, 40538, 60807, 81076, 101345, 121614, 162152, 202690, 243228, 263497, 304035, 405380, 486456, 526994, 608070, 790491, 810760, 1053988, 1216140, 1317485, 1580982, 2107976, 2432280, 2634970, 3161964, 3952455, 5269940, 6323928, 7904910, 10539880, 15809820, 31619640]

約数ペア:

[(1, 31619640), (2, 15809820), (3, 10539880), (4, 7904910), (5, 6323928), (6, 5269940), (8, 3952455), (10, 3161964), (12, 2634970), (13, 2432280), (15, 2107976), (20, 1580982), (24, 1317485), (26, 1216140), (30, 1053988), (39, 810760), (40, 790491), (52, 608070), (60, 526994), (65, 486456), (78, 405380), (104, 304035), (120, 263497), (130, 243228), (156, 202690), (195, 162152), (260, 121614), (312, 101345), (390, 81076), (520, 60807), (780, 40538), (1560, 20269)]