420415490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{123289}}^1$

素因数の和:123338

約数の個数: 32

約数和(自身を含む): 852180480

約数和(自身を除く): 431764990

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 1705, 3410, 123289, 246578, 616445, 1232890, 1356179, 2712358, 3821959, 6780895, 7643918, 13561790, 19109795, 38219590, 42041549, 84083098, 210207745, 420415490]

約数ペア:

[(1, 420415490), (2, 210207745), (5, 84083098), (10, 42041549), (11, 38219590), (22, 19109795), (31, 13561790), (55, 7643918), (62, 6780895), (110, 3821959), (155, 2712358), (310, 1356179), (341, 1232890), (682, 616445), (1705, 246578), (3410, 123289)]