38400940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1\times {\mathrm{257}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 83913984

約数和(自身を除く): 45513044

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 241, 257, 310, 482, 514, 620, 964, 1028, 1205, 1285, 2410, 2570, 4820, 5140, 7471, 7967, 14942, 15934, 29884, 31868, 37355, 39835, 61937, 74710, 79670, 123874, 149420, 159340, 247748, 309685, 619370, 1238740, 1920047, 3840094, 7680188, 9600235, 19200470, 38400940]

約数ペア:

[(1, 38400940), (2, 19200470), (4, 9600235), (5, 7680188), (10, 3840094), (20, 1920047), (31, 1238740), (62, 619370), (124, 309685), (155, 247748), (241, 159340), (257, 149420), (310, 123874), (482, 79670), (514, 74710), (620, 61937), (964, 39835), (1028, 37355), (1205, 31868), (1285, 29884), (2410, 15934), (2570, 14942), (4820, 7967), (5140, 7471)]