317885540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:490

約数の個数: 96

約数和(自身を含む): 786240000

約数和(自身を除く): 468354460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 149, 196, 245, 298, 311, 343, 490, 596, 622, 686, 745, 980, 1043, 1244, 1372, 1490, 1555, 1715, 2086, 2177, 2980, 3110, 3430, 4172, 4354, 5215, 6220, 6860, 7301, 8708, 10430, 10885, 14602, 15239, 20860, 21770, 29204, 30478, 36505, 43540, 46339, 51107, 60956, 73010, 76195, 92678, 102214, 106673, 146020, 152390, 185356, 204428, 213346, 231695, 255535, 304780, 324373, 426692, 463390, 511070, 533365, 648746, 926780, 1022140, 1066730, 1297492, 1621865, 2133460, 2270611, 3243730, 4541222, 6487460, 9082444, 11353055, 15894277, 22706110, 31788554, 45412220, 63577108, 79471385, 158942770, 317885540]

約数ペア:

[(1, 317885540), (2, 158942770), (4, 79471385), (5, 63577108), (7, 45412220), (10, 31788554), (14, 22706110), (20, 15894277), (28, 11353055), (35, 9082444), (49, 6487460), (70, 4541222), (98, 3243730), (140, 2270611), (149, 2133460), (196, 1621865), (245, 1297492), (298, 1066730), (311, 1022140), (343, 926780), (490, 648746), (596, 533365), (622, 511070), (686, 463390), (745, 426692), (980, 324373), (1043, 304780), (1244, 255535), (1372, 231695), (1490, 213346), (1555, 204428), (1715, 185356), (2086, 152390), (2177, 146020), (2980, 106673), (3110, 102214), (3430, 92678), (4172, 76195), (4354, 73010), (5215, 60956), (6220, 51107), (6860, 46339), (7301, 43540), (8708, 36505), (10430, 30478), (10885, 29204), (14602, 21770), (15239, 20860)]