78794740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1861}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 173612880

約数和(自身を除く): 94818140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 73, 116, 145, 146, 290, 292, 365, 580, 730, 1460, 1861, 2117, 3722, 4234, 7444, 8468, 9305, 10585, 18610, 21170, 37220, 42340, 53969, 107938, 135853, 215876, 269845, 271706, 539690, 543412, 679265, 1079380, 1358530, 2717060, 3939737, 7879474, 15758948, 19698685, 39397370, 78794740]

約数ペア:

[(1, 78794740), (2, 39397370), (4, 19698685), (5, 15758948), (10, 7879474), (20, 3939737), (29, 2717060), (58, 1358530), (73, 1079380), (116, 679265), (145, 543412), (146, 539690), (290, 271706), (292, 269845), (365, 215876), (580, 135853), (730, 107938), (1460, 53969), (1861, 42340), (2117, 37220), (3722, 21170), (4234, 18610), (7444, 10585), (8468, 9305)]