1389783570

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{945431}}^1$

素因数の和:945455

約数の個数: 48

約数和(自身を含む): 3880052928

約数和(自身を除く): 2490269358

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 945431, 1890862, 2836293, 4727155, 5672586, 6618017, 9454310, 13236034, 14181465, 19854051, 28362930, 33090085, 39708102, 46326119, 66180170, 92652238, 99270255, 138978357, 198540510, 231630595, 277956714, 463261190, 694891785, 1389783570]

約数ペア:

[(1, 1389783570), (2, 694891785), (3, 463261190), (5, 277956714), (6, 231630595), (7, 198540510), (10, 138978357), (14, 99270255), (15, 92652238), (21, 66180170), (30, 46326119), (35, 39708102), (42, 33090085), (49, 28362930), (70, 19854051), (98, 14181465), (105, 13236034), (147, 9454310), (210, 6618017), (245, 5672586), (294, 4727155), (490, 2836293), (735, 1890862), (1470, 945431)]