20575780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{829}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 46433520

約数和(自身を除く): 25857740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 73, 85, 146, 170, 292, 340, 365, 730, 829, 1241, 1460, 1658, 2482, 3316, 4145, 4964, 6205, 8290, 12410, 14093, 16580, 24820, 28186, 56372, 60517, 70465, 121034, 140930, 242068, 281860, 302585, 605170, 1028789, 1210340, 2057578, 4115156, 5143945, 10287890, 20575780]

約数ペア:

[(1, 20575780), (2, 10287890), (4, 5143945), (5, 4115156), (10, 2057578), (17, 1210340), (20, 1028789), (34, 605170), (68, 302585), (73, 281860), (85, 242068), (146, 140930), (170, 121034), (292, 70465), (340, 60517), (365, 56372), (730, 28186), (829, 24820), (1241, 16580), (1460, 14093), (1658, 12410), (2482, 8290), (3316, 6205), (4145, 4964)]