20147352848

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{305411}}^1$

素因数の和:305476

約数の個数: 80

約数和(自身を含む): 48474992640

約数和(自身を除く): 28327639792

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 38, 56, 62, 76, 112, 124, 133, 152, 217, 248, 266, 304, 434, 496, 532, 589, 868, 1064, 1178, 1736, 2128, 2356, 3472, 4123, 4712, 8246, 9424, 16492, 32984, 65968, 305411, 610822, 1221644, 2137877, 2443288, 4275754, 4886576, 5802809, 8551508, 9467741, 11605618, 17103016, 18935482, 23211236, 34206032, 37870964, 40619663, 46422472, 66274187, 75741928, 81239326, 92844944, 132548374, 151483856, 162478652, 179887079, 265096748, 324957304, 359774158, 530193496, 649914608, 719548316, 1060386992, 1259209553, 1439096632, 2518419106, 2878193264, 5036838212, 10073676424, 20147352848]

約数ペア:

[(1, 20147352848), (2, 10073676424), (4, 5036838212), (7, 2878193264), (8, 2518419106), (14, 1439096632), (16, 1259209553), (19, 1060386992), (28, 719548316), (31, 649914608), (38, 530193496), (56, 359774158), (62, 324957304), (76, 265096748), (112, 179887079), (124, 162478652), (133, 151483856), (152, 132548374), (217, 92844944), (248, 81239326), (266, 75741928), (304, 66274187), (434, 46422472), (496, 40619663), (532, 37870964), (589, 34206032), (868, 23211236), (1064, 18935482), (1178, 17103016), (1736, 11605618), (2128, 9467741), (2356, 8551508), (3472, 5802809), (4123, 4886576), (4712, 4275754), (8246, 2443288), (9424, 2137877), (16492, 1221644), (32984, 610822), (65968, 305411)]