20970930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31283790

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 47, 94, 107, 139, 141, 214, 235, 278, 282, 321, 417, 470, 535, 642, 695, 705, 834, 1070, 1390, 1410, 1605, 2085, 3210, 4170, 5029, 6533, 10058, 13066, 14873, 15087, 19599, 25145, 29746, 30174, 32665, 39198, 44619, 50290, 65330, 74365, 75435, 89238, 97995, 148730, 150870, 195990, 223095, 446190, 699031, 1398062, 2097093, 3495155, 4194186, 6990310, 10485465, 20970930]

約数ペア:

[(1, 20970930), (2, 10485465), (3, 6990310), (5, 4194186), (6, 3495155), (10, 2097093), (15, 1398062), (30, 699031), (47, 446190), (94, 223095), (107, 195990), (139, 150870), (141, 148730), (214, 97995), (235, 89238), (278, 75435), (282, 74365), (321, 65330), (417, 50290), (470, 44619), (535, 39198), (642, 32665), (695, 30174), (705, 29746), (834, 25145), (1070, 19599), (1390, 15087), (1410, 14873), (1605, 13066), (2085, 10058), (3210, 6533), (4170, 5029)]