90386380

素因数分解:

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

素因数の和:791

約数の個数: 72

約数和(自身を含む): 222642000

約数和(自身を除く): 132255620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 490, 596, 619, 745, 980, 1043, 1238, 1490, 2086, 2476, 2980, 3095, 4172, 4333, 5215, 6190, 7301, 8666, 10430, 12380, 14602, 17332, 20860, 21665, 29204, 30331, 36505, 43330, 60662, 73010, 86660, 92231, 121324, 146020, 151655, 184462, 303310, 368924, 461155, 606620, 645617, 922310, 1291234, 1844620, 2582468, 3228085, 4519319, 6456170, 9038638, 12912340, 18077276, 22596595, 45193190, 90386380]

約数ペア:

[(1, 90386380), (2, 45193190), (4, 22596595), (5, 18077276), (7, 12912340), (10, 9038638), (14, 6456170), (20, 4519319), (28, 3228085), (35, 2582468), (49, 1844620), (70, 1291234), (98, 922310), (140, 645617), (149, 606620), (196, 461155), (245, 368924), (298, 303310), (490, 184462), (596, 151655), (619, 146020), (745, 121324), (980, 92231), (1043, 86660), (1238, 73010), (1490, 60662), (2086, 43330), (2476, 36505), (2980, 30331), (3095, 29204), (4172, 21665), (4333, 20860), (5215, 17332), (6190, 14602), (7301, 12380), (8666, 10430)]