20866370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{541}}^1$

素因数の和:603

約数の個数: 64

約数和(自身を含む): 46828800

約数和(自身を除く): 25962430

約数列:

[1, 2, 5, 7, 10, 14, 19, 29, 35, 38, 58, 70, 95, 133, 145, 190, 203, 266, 290, 406, 541, 551, 665, 1015, 1082, 1102, 1330, 2030, 2705, 2755, 3787, 3857, 5410, 5510, 7574, 7714, 10279, 15689, 18935, 19285, 20558, 31378, 37870, 38570, 51395, 71953, 78445, 102790, 109823, 143906, 156890, 219646, 298091, 359765, 549115, 596182, 719530, 1098230, 1490455, 2086637, 2980910, 4173274, 10433185, 20866370]

約数ペア:

[(1, 20866370), (2, 10433185), (5, 4173274), (7, 2980910), (10, 2086637), (14, 1490455), (19, 1098230), (29, 719530), (35, 596182), (38, 549115), (58, 359765), (70, 298091), (95, 219646), (133, 156890), (145, 143906), (190, 109823), (203, 102790), (266, 78445), (290, 71953), (406, 51395), (541, 38570), (551, 37870), (665, 31378), (1015, 20558), (1082, 19285), (1102, 18935), (1330, 15689), (2030, 10279), (2705, 7714), (2755, 7574), (3787, 5510), (3857, 5410)]