8343765220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{839413}}^1$

素因数の和:839500

約数の個数: 48

約数和(自身を含む): 20307103488

約数和(自身を除く): 11963338268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 839413, 1678826, 3357652, 4197065, 5875891, 8394130, 11751782, 16788260, 23503564, 29379455, 58758910, 59598323, 117517820, 119196646, 238393292, 297991615, 417188261, 595983230, 834376522, 1191966460, 1668753044, 2085941305, 4171882610, 8343765220]

約数ペア:

[(1, 8343765220), (2, 4171882610), (4, 2085941305), (5, 1668753044), (7, 1191966460), (10, 834376522), (14, 595983230), (20, 417188261), (28, 297991615), (35, 238393292), (70, 119196646), (71, 117517820), (140, 59598323), (142, 58758910), (284, 29379455), (355, 23503564), (497, 16788260), (710, 11751782), (994, 8394130), (1420, 5875891), (1988, 4197065), (2485, 3357652), (4970, 1678826), (9940, 839413)]