78936520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11677}}^1$

素因数の和:11714

約数の個数: 48

約数和(自身を含む): 192336660

約数和(自身を除く): 113400140

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 11677, 23354, 46708, 58385, 93416, 116770, 151801, 233540, 303602, 467080, 607204, 759005, 1214408, 1518010, 1973413, 3036020, 3946826, 6072040, 7893652, 9867065, 15787304, 19734130, 39468260, 78936520]

約数ペア:

[(1, 78936520), (2, 39468260), (4, 19734130), (5, 15787304), (8, 9867065), (10, 7893652), (13, 6072040), (20, 3946826), (26, 3036020), (40, 1973413), (52, 1518010), (65, 1214408), (104, 759005), (130, 607204), (169, 467080), (260, 303602), (338, 233540), (520, 151801), (676, 116770), (845, 93416), (1352, 58385), (1690, 46708), (3380, 23354), (6760, 11677)]