2781511208

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{11527}}^1$

素因数の和:11710

約数の個数: 64

約数和(自身を含む): 6197452800

約数和(自身を除く): 3415941592

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 139, 217, 248, 278, 434, 556, 868, 973, 1112, 1736, 1946, 3892, 4309, 7784, 8618, 11527, 17236, 23054, 30163, 34472, 46108, 60326, 80689, 92216, 120652, 161378, 241304, 322756, 357337, 645512, 714674, 1429348, 1602253, 2501359, 2858696, 3204506, 5002718, 6409012, 10005436, 11215771, 12818024, 20010872, 22431542, 44863084, 49669843, 89726168, 99339686, 198679372, 347688901, 397358744, 695377802, 1390755604, 2781511208]

約数ペア:

[(1, 2781511208), (2, 1390755604), (4, 695377802), (7, 397358744), (8, 347688901), (14, 198679372), (28, 99339686), (31, 89726168), (56, 49669843), (62, 44863084), (124, 22431542), (139, 20010872), (217, 12818024), (248, 11215771), (278, 10005436), (434, 6409012), (556, 5002718), (868, 3204506), (973, 2858696), (1112, 2501359), (1736, 1602253), (1946, 1429348), (3892, 714674), (4309, 645512), (7784, 357337), (8618, 322756), (11527, 241304), (17236, 161378), (23054, 120652), (30163, 92216), (34472, 80689), (46108, 60326)]