8704220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 21181440

約数和(自身を除く): 12477220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 140, 158, 316, 395, 553, 787, 790, 1106, 1574, 1580, 2212, 2765, 3148, 3935, 5509, 5530, 7870, 11018, 11060, 15740, 22036, 27545, 55090, 62173, 110180, 124346, 248692, 310865, 435211, 621730, 870422, 1243460, 1740844, 2176055, 4352110, 8704220]

約数ペア:

[(1, 8704220), (2, 4352110), (4, 2176055), (5, 1740844), (7, 1243460), (10, 870422), (14, 621730), (20, 435211), (28, 310865), (35, 248692), (70, 124346), (79, 110180), (140, 62173), (158, 55090), (316, 27545), (395, 22036), (553, 15740), (787, 11060), (790, 11018), (1106, 7870), (1574, 5530), (1580, 5509), (2212, 3935), (2765, 3148)]