20492620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 44862048

約数和(自身を除く): 24369428

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 373, 410, 670, 746, 820, 1340, 1492, 1865, 2747, 3730, 5494, 7460, 10988, 13735, 15293, 24991, 27470, 30586, 49982, 54940, 61172, 76465, 99964, 124955, 152930, 249910, 305860, 499820, 1024631, 2049262, 4098524, 5123155, 10246310, 20492620]

約数ペア:

[(1, 20492620), (2, 10246310), (4, 5123155), (5, 4098524), (10, 2049262), (20, 1024631), (41, 499820), (67, 305860), (82, 249910), (134, 152930), (164, 124955), (205, 99964), (268, 76465), (335, 61172), (373, 54940), (410, 49982), (670, 30586), (746, 27470), (820, 24991), (1340, 15293), (1492, 13735), (1865, 10988), (2747, 7460), (3730, 5494)]