78855940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{659}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 172085760

約数和(自身を除く): 93229820

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 193, 310, 386, 620, 659, 772, 965, 1318, 1930, 2636, 3295, 3860, 5983, 6590, 11966, 13180, 20429, 23932, 29915, 40858, 59830, 81716, 102145, 119660, 127187, 204290, 254374, 408580, 508748, 635935, 1271870, 2543740, 3942797, 7885594, 15771188, 19713985, 39427970, 78855940]

約数ペア:

[(1, 78855940), (2, 39427970), (4, 19713985), (5, 15771188), (10, 7885594), (20, 3942797), (31, 2543740), (62, 1271870), (124, 635935), (155, 508748), (193, 408580), (310, 254374), (386, 204290), (620, 127187), (659, 119660), (772, 102145), (965, 81716), (1318, 59830), (1930, 40858), (2636, 29915), (3295, 23932), (3860, 20429), (5983, 13180), (6590, 11966)]