20341365

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 37711872

約数和(自身を除く): 17370507

約数列:

[1, 3, 5, 11, 15, 33, 43, 47, 55, 61, 129, 141, 165, 183, 215, 235, 305, 473, 517, 645, 671, 705, 915, 1419, 1551, 2013, 2021, 2365, 2585, 2623, 2867, 3355, 6063, 7095, 7755, 7869, 8601, 10065, 10105, 13115, 14335, 22231, 28853, 30315, 31537, 39345, 43005, 66693, 86559, 94611, 111155, 123281, 144265, 157685, 333465, 369843, 432795, 473055, 616405, 1356091, 1849215, 4068273, 6780455, 20341365]

約数ペア:

[(1, 20341365), (3, 6780455), (5, 4068273), (11, 1849215), (15, 1356091), (33, 616405), (43, 473055), (47, 432795), (55, 369843), (61, 333465), (129, 157685), (141, 144265), (165, 123281), (183, 111155), (215, 94611), (235, 86559), (305, 66693), (473, 43005), (517, 39345), (645, 31537), (671, 30315), (705, 28853), (915, 22231), (1419, 14335), (1551, 13115), (2013, 10105), (2021, 10065), (2365, 8601), (2585, 7869), (2623, 7755), (2867, 7095), (3355, 6063)]