39601220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 85201200

約数和(自身を除く): 45599980

約数列:

[1, 2, 4, 5, 10, 20, 97, 137, 149, 194, 274, 298, 388, 485, 548, 596, 685, 745, 970, 1370, 1490, 1940, 2740, 2980, 13289, 14453, 20413, 26578, 28906, 40826, 53156, 57812, 66445, 72265, 81652, 102065, 132890, 144530, 204130, 265780, 289060, 408260, 1980061, 3960122, 7920244, 9900305, 19800610, 39601220]

約数ペア:

[(1, 39601220), (2, 19800610), (4, 9900305), (5, 7920244), (10, 3960122), (20, 1980061), (97, 408260), (137, 289060), (149, 265780), (194, 204130), (274, 144530), (298, 132890), (388, 102065), (485, 81652), (548, 72265), (596, 66445), (685, 57812), (745, 53156), (970, 40826), (1370, 28906), (1490, 26578), (1940, 20413), (2740, 14453), (2980, 13289)]