208070660

素因数分解:

$2^2\times 5^1\times 7^5\times {\mathrm{619}}^1$

素因数の和:663

約数の個数: 72

約数和(自身を含む): 510592320

約数和(自身を除く): 302521660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 619, 686, 980, 1238, 1372, 1715, 2401, 2476, 3095, 3430, 4333, 4802, 6190, 6860, 8666, 9604, 12005, 12380, 16807, 17332, 21665, 24010, 30331, 33614, 43330, 48020, 60662, 67228, 84035, 86660, 121324, 151655, 168070, 212317, 303310, 336140, 424634, 606620, 849268, 1061585, 1486219, 2123170, 2972438, 4246340, 5944876, 7431095, 10403533, 14862190, 20807066, 29724380, 41614132, 52017665, 104035330, 208070660]

約数ペア:

[(1, 208070660), (2, 104035330), (4, 52017665), (5, 41614132), (7, 29724380), (10, 20807066), (14, 14862190), (20, 10403533), (28, 7431095), (35, 5944876), (49, 4246340), (70, 2972438), (98, 2123170), (140, 1486219), (196, 1061585), (245, 849268), (343, 606620), (490, 424634), (619, 336140), (686, 303310), (980, 212317), (1238, 168070), (1372, 151655), (1715, 121324), (2401, 86660), (2476, 84035), (3095, 67228), (3430, 60662), (4333, 48020), (4802, 43330), (6190, 33614), (6860, 30331), (8666, 24010), (9604, 21665), (12005, 17332), (12380, 16807)]