1970606540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{487}}^1\times {\mathrm{4129}}^1$

素因数の和:4639

約数の個数: 72

約数和(自身を含む): 4824963360

約数和(自身を除く): 2854356820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 487, 490, 974, 980, 1948, 2435, 3409, 4129, 4870, 6818, 8258, 9740, 13636, 16516, 17045, 20645, 23863, 28903, 34090, 41290, 47726, 57806, 68180, 82580, 95452, 115612, 119315, 144515, 202321, 238630, 289030, 404642, 477260, 578060, 809284, 1011605, 2010823, 2023210, 4021646, 4046420, 8043292, 10054115, 14075761, 20108230, 28151522, 40216460, 56303044, 70378805, 98530327, 140757610, 197060654, 281515220, 394121308, 492651635, 985303270, 1970606540]

約数ペア:

[(1, 1970606540), (2, 985303270), (4, 492651635), (5, 394121308), (7, 281515220), (10, 197060654), (14, 140757610), (20, 98530327), (28, 70378805), (35, 56303044), (49, 40216460), (70, 28151522), (98, 20108230), (140, 14075761), (196, 10054115), (245, 8043292), (487, 4046420), (490, 4021646), (974, 2023210), (980, 2010823), (1948, 1011605), (2435, 809284), (3409, 578060), (4129, 477260), (4870, 404642), (6818, 289030), (8258, 238630), (9740, 202321), (13636, 144515), (16516, 119315), (17045, 115612), (20645, 95452), (23863, 82580), (28903, 68180), (34090, 57806), (41290, 47726)]