20123057985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{461}}^1\times {\mathrm{1487}}^1$

素因数の和:2078

約数の個数: 64

約数和(自身を含む): 34317803520

約数和(自身を除く): 14194745535

約数列:

[1, 3, 5, 15, 19, 57, 95, 103, 285, 309, 461, 515, 1383, 1487, 1545, 1957, 2305, 4461, 5871, 6915, 7435, 8759, 9785, 22305, 26277, 28253, 29355, 43795, 47483, 84759, 131385, 141265, 142449, 153161, 237415, 423795, 459483, 685507, 712245, 765805, 902177, 2056521, 2297415, 2706531, 2910059, 3427535, 4510885, 8730177, 10282605, 13024633, 13532655, 14550295, 39073899, 43650885, 65123165, 70607221, 195369495, 211821663, 353036105, 1059108315, 1341537199, 4024611597, 6707685995, 20123057985]

約数ペア:

[(1, 20123057985), (3, 6707685995), (5, 4024611597), (15, 1341537199), (19, 1059108315), (57, 353036105), (95, 211821663), (103, 195369495), (285, 70607221), (309, 65123165), (461, 43650885), (515, 39073899), (1383, 14550295), (1487, 13532655), (1545, 13024633), (1957, 10282605), (2305, 8730177), (4461, 4510885), (5871, 3427535), (6915, 2910059), (7435, 2706531), (8759, 2297415), (9785, 2056521), (22305, 902177), (26277, 765805), (28253, 712245), (29355, 685507), (43795, 459483), (47483, 423795), (84759, 237415), (131385, 153161), (141265, 142449)]