28707765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{383}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 48660480

約数和(自身を除く): 19952715

約数列:

[1, 3, 5, 15, 19, 57, 95, 263, 285, 383, 789, 1149, 1315, 1915, 3945, 4997, 5745, 7277, 14991, 21831, 24985, 36385, 74955, 100729, 109155, 302187, 503645, 1510935, 1913851, 5741553, 9569255, 28707765]

約数ペア:

[(1, 28707765), (3, 9569255), (5, 5741553), (15, 1913851), (19, 1510935), (57, 503645), (95, 302187), (263, 109155), (285, 100729), (383, 74955), (789, 36385), (1149, 24985), (1315, 21831), (1915, 14991), (3945, 7277), (4997, 5745)]