721000740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{169249}}^1$

素因数の和:169332

約数の個数: 48

約数和(自身を含む): 2047248000

約数和(自身を除く): 1326247260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 169249, 338498, 507747, 676996, 846245, 1015494, 1692490, 2030988, 2538735, 3384980, 5077470, 10154940, 12016679, 24033358, 36050037, 48066716, 60083395, 72100074, 120166790, 144200148, 180250185, 240333580, 360500370, 721000740]

約数ペア:

[(1, 721000740), (2, 360500370), (3, 240333580), (4, 180250185), (5, 144200148), (6, 120166790), (10, 72100074), (12, 60083395), (15, 48066716), (20, 36050037), (30, 24033358), (60, 12016679), (71, 10154940), (142, 5077470), (213, 3384980), (284, 2538735), (355, 2030988), (426, 1692490), (710, 1015494), (852, 846245), (1065, 676996), (1420, 507747), (2130, 338498), (4260, 169249)]