66684620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{311}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 143410176

約数和(自身を除く): 76725556

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 151, 284, 302, 311, 355, 604, 622, 710, 755, 1244, 1420, 1510, 1555, 3020, 3110, 6220, 10721, 21442, 22081, 42884, 44162, 46961, 53605, 88324, 93922, 107210, 110405, 187844, 214420, 220810, 234805, 441620, 469610, 939220, 3334231, 6668462, 13336924, 16671155, 33342310, 66684620]

約数ペア:

[(1, 66684620), (2, 33342310), (4, 16671155), (5, 13336924), (10, 6668462), (20, 3334231), (71, 939220), (142, 469610), (151, 441620), (284, 234805), (302, 220810), (311, 214420), (355, 187844), (604, 110405), (622, 107210), (710, 93922), (755, 88324), (1244, 53605), (1420, 46961), (1510, 44162), (1555, 42884), (3020, 22081), (3110, 21442), (6220, 10721)]