18135780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23251}}^1$

素因数の和:23276

約数の個数: 48

約数和(自身を含む): 54688704

約数和(自身を除く): 36552924

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, 23251, 46502, 69753, 93004, 116255, 139506, 232510, 279012, 302263, 348765, 465020, 604526, 697530, 906789, 1209052, 1395060, 1511315, 1813578, 3022630, 3627156, 4533945, 6045260, 9067890, 18135780]

約数ペア:

[(1, 18135780), (2, 9067890), (3, 6045260), (4, 4533945), (5, 3627156), (6, 3022630), (10, 1813578), (12, 1511315), (13, 1395060), (15, 1209052), (20, 906789), (26, 697530), (30, 604526), (39, 465020), (52, 348765), (60, 302263), (65, 279012), (78, 232510), (130, 139506), (156, 116255), (195, 93004), (260, 69753), (390, 46502), (780, 23251)]