12912340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{619}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 31248000

約数和(自身を除く): 18335660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 619, 745, 1043, 1238, 1490, 2086, 2476, 2980, 3095, 4172, 4333, 5215, 6190, 8666, 10430, 12380, 17332, 20860, 21665, 43330, 86660, 92231, 184462, 368924, 461155, 645617, 922310, 1291234, 1844620, 2582468, 3228085, 6456170, 12912340]

約数ペア:

[(1, 12912340), (2, 6456170), (4, 3228085), (5, 2582468), (7, 1844620), (10, 1291234), (14, 922310), (20, 645617), (28, 461155), (35, 368924), (70, 184462), (140, 92231), (149, 86660), (298, 43330), (596, 21665), (619, 20860), (745, 17332), (1043, 12380), (1238, 10430), (1490, 8666), (2086, 6190), (2476, 5215), (2980, 4333), (3095, 4172)]