291216040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{383179}}^1$

素因数の和:383209

約数の個数: 32

約数和(自身を含む): 689724000

約数和(自身を除く): 398507960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 383179, 766358, 1532716, 1915895, 3065432, 3831790, 7280401, 7663580, 14560802, 15327160, 29121604, 36402005, 58243208, 72804010, 145608020, 291216040]

約数ペア:

[(1, 291216040), (2, 145608020), (4, 72804010), (5, 58243208), (8, 36402005), (10, 29121604), (19, 15327160), (20, 14560802), (38, 7663580), (40, 7280401), (76, 3831790), (95, 3065432), (152, 1915895), (190, 1532716), (380, 766358), (760, 383179)]