77615920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12281}}^1$

素因数の和:12373

約数の個数: 40

約数和(自身を含む): 182756160

約数和(自身を除く): 105140240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 12281, 24562, 49124, 61405, 98248, 122810, 196496, 245620, 491240, 970199, 982480, 1940398, 3880796, 4850995, 7761592, 9701990, 15523184, 19403980, 38807960, 77615920]

約数ペア:

[(1, 77615920), (2, 38807960), (4, 19403980), (5, 15523184), (8, 9701990), (10, 7761592), (16, 4850995), (20, 3880796), (40, 1940398), (79, 982480), (80, 970199), (158, 491240), (316, 245620), (395, 196496), (632, 122810), (790, 98248), (1264, 61405), (1580, 49124), (3160, 24562), (6320, 12281)]