215945460

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{399899}}^1$

素因数の和:399917

約数の個数: 48

約数和(自身を含む): 671832000

約数和(自身を除く): 455886540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 399899, 799798, 1199697, 1599596, 1999495, 2399394, 3599091, 3998990, 4798788, 5998485, 7198182, 7997980, 10797273, 11996970, 14396364, 17995455, 21594546, 23993940, 35990910, 43189092, 53986365, 71981820, 107972730, 215945460]

約数ペア:

[(1, 215945460), (2, 107972730), (3, 71981820), (4, 53986365), (5, 43189092), (6, 35990910), (9, 23993940), (10, 21594546), (12, 17995455), (15, 14396364), (18, 11996970), (20, 10797273), (27, 7997980), (30, 7198182), (36, 5998485), (45, 4798788), (54, 3998990), (60, 3599091), (90, 2399394), (108, 1999495), (135, 1599596), (180, 1199697), (270, 799798), (540, 399899)]