81687520

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3673}}^1$

素因数の和:3827

約数の個数: 48

約数和(自身を含む): 194428080

約数和(自身を除く): 112740560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 3673, 4448, 5560, 7346, 11120, 14692, 18365, 22240, 29384, 36730, 58768, 73460, 117536, 146920, 293840, 510547, 587680, 1021094, 2042188, 2552735, 4084376, 5105470, 8168752, 10210940, 16337504, 20421880, 40843760, 81687520]

約数ペア:

[(1, 81687520), (2, 40843760), (4, 20421880), (5, 16337504), (8, 10210940), (10, 8168752), (16, 5105470), (20, 4084376), (32, 2552735), (40, 2042188), (80, 1021094), (139, 587680), (160, 510547), (278, 293840), (556, 146920), (695, 117536), (1112, 73460), (1390, 58768), (2224, 36730), (2780, 29384), (3673, 22240), (4448, 18365), (5560, 14692), (7346, 11120)]