25908220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{397}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 58974048

約数和(自身を除く): 33065828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 251, 260, 397, 502, 794, 1004, 1255, 1588, 1985, 2510, 3263, 3970, 5020, 5161, 6526, 7940, 10322, 13052, 16315, 20644, 25805, 32630, 51610, 65260, 99647, 103220, 199294, 398588, 498235, 996470, 1295411, 1992940, 2590822, 5181644, 6477055, 12954110, 25908220]

約数ペア:

[(1, 25908220), (2, 12954110), (4, 6477055), (5, 5181644), (10, 2590822), (13, 1992940), (20, 1295411), (26, 996470), (52, 498235), (65, 398588), (130, 199294), (251, 103220), (260, 99647), (397, 65260), (502, 51610), (794, 32630), (1004, 25805), (1255, 20644), (1588, 16315), (1985, 13052), (2510, 10322), (3263, 7940), (3970, 6526), (5020, 5161)]