20123362785

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{4129}}^1$

素因数の和:4438

約数の個数: 64

約数和(自身を含む): 34103623680

約数和(自身を除く): 13980260895

約数列:

[1, 3, 5, 15, 31, 47, 93, 141, 155, 223, 235, 465, 669, 705, 1115, 1457, 3345, 4129, 4371, 6913, 7285, 10481, 12387, 20645, 20739, 21855, 31443, 34565, 52405, 61935, 103695, 127999, 157215, 194063, 324911, 383997, 582189, 639995, 920767, 970315, 974733, 1624555, 1919985, 2762301, 2910945, 4603835, 4873665, 6015953, 13811505, 18047859, 28543777, 30079765, 43276049, 85631331, 90239295, 129828147, 142718885, 216380245, 428156655, 649140735, 1341557519, 4024672557, 6707787595, 20123362785]

約数ペア:

[(1, 20123362785), (3, 6707787595), (5, 4024672557), (15, 1341557519), (31, 649140735), (47, 428156655), (93, 216380245), (141, 142718885), (155, 129828147), (223, 90239295), (235, 85631331), (465, 43276049), (669, 30079765), (705, 28543777), (1115, 18047859), (1457, 13811505), (3345, 6015953), (4129, 4873665), (4371, 4603835), (6913, 2910945), (7285, 2762301), (10481, 1919985), (12387, 1624555), (20645, 974733), (20739, 970315), (21855, 920767), (31443, 639995), (34565, 582189), (52405, 383997), (61935, 324911), (103695, 194063), (127999, 157215)]