19689800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7573}}^1$

素因数の和:7602

約数の個数: 48

約数和(自身を含む): 49306740

約数和(自身を除く): 29616940

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 7573, 15146, 30292, 37865, 60584, 75730, 98449, 151460, 189325, 196898, 302920, 378650, 393796, 492245, 757300, 787592, 984490, 1514600, 1968980, 2461225, 3937960, 4922450, 9844900, 19689800]

約数ペア:

[(1, 19689800), (2, 9844900), (4, 4922450), (5, 3937960), (8, 2461225), (10, 1968980), (13, 1514600), (20, 984490), (25, 787592), (26, 757300), (40, 492245), (50, 393796), (52, 378650), (65, 302920), (100, 196898), (104, 189325), (130, 151460), (200, 98449), (260, 75730), (325, 60584), (520, 37865), (650, 30292), (1300, 15146), (2600, 7573)]