28745948

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{199}}^1$

素因数の和:295

約数の個数: 72

約数和(自身を含む): 65116800

約数和(自身を除く): 36370852

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 67, 77, 98, 134, 154, 196, 199, 268, 308, 398, 469, 539, 737, 796, 938, 1078, 1393, 1474, 1876, 2156, 2189, 2786, 2948, 3283, 4378, 5159, 5572, 6566, 8756, 9751, 10318, 13132, 13333, 15323, 19502, 20636, 26666, 30646, 36113, 39004, 53332, 61292, 72226, 93331, 107261, 144452, 146663, 186662, 214522, 293326, 373324, 429044, 586652, 653317, 1026641, 1306634, 2053282, 2613268, 4106564, 7186487, 14372974, 28745948]

約数ペア:

[(1, 28745948), (2, 14372974), (4, 7186487), (7, 4106564), (11, 2613268), (14, 2053282), (22, 1306634), (28, 1026641), (44, 653317), (49, 586652), (67, 429044), (77, 373324), (98, 293326), (134, 214522), (154, 186662), (196, 146663), (199, 144452), (268, 107261), (308, 93331), (398, 72226), (469, 61292), (539, 53332), (737, 39004), (796, 36113), (938, 30646), (1078, 26666), (1393, 20636), (1474, 19502), (1876, 15323), (2156, 13333), (2189, 13132), (2786, 10318), (2948, 9751), (3283, 8756), (4378, 6566), (5159, 5572)]