30479780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 65802240

約数和(自身を除く): 35322460

約数列:

[1, 2, 4, 5, 10, 20, 79, 101, 158, 191, 202, 316, 382, 395, 404, 505, 764, 790, 955, 1010, 1580, 1910, 2020, 3820, 7979, 15089, 15958, 19291, 30178, 31916, 38582, 39895, 60356, 75445, 77164, 79790, 96455, 150890, 159580, 192910, 301780, 385820, 1523989, 3047978, 6095956, 7619945, 15239890, 30479780]

約数ペア:

[(1, 30479780), (2, 15239890), (4, 7619945), (5, 6095956), (10, 3047978), (20, 1523989), (79, 385820), (101, 301780), (158, 192910), (191, 159580), (202, 150890), (316, 96455), (382, 79790), (395, 77164), (404, 75445), (505, 60356), (764, 39895), (790, 38582), (955, 31916), (1010, 30178), (1580, 19291), (1910, 15958), (2020, 15089), (3820, 7979)]