66720420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{28513}}^1$

素因数の和:28541

約数の個数: 72

約数和(自身を含む): 217961016

約数和(自身を除く): 151240596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 28513, 57026, 85539, 114052, 142565, 171078, 256617, 285130, 342156, 370669, 427695, 513234, 570260, 741338, 855390, 1026468, 1112007, 1283085, 1482676, 1710780, 1853345, 2224014, 2566170, 3336021, 3706690, 4448028, 5132340, 5560035, 6672042, 7413380, 11120070, 13344084, 16680105, 22240140, 33360210, 66720420]

約数ペア:

[(1, 66720420), (2, 33360210), (3, 22240140), (4, 16680105), (5, 13344084), (6, 11120070), (9, 7413380), (10, 6672042), (12, 5560035), (13, 5132340), (15, 4448028), (18, 3706690), (20, 3336021), (26, 2566170), (30, 2224014), (36, 1853345), (39, 1710780), (45, 1482676), (52, 1283085), (60, 1112007), (65, 1026468), (78, 855390), (90, 741338), (117, 570260), (130, 513234), (156, 427695), (180, 370669), (195, 342156), (234, 285130), (260, 256617), (390, 171078), (468, 142565), (585, 114052), (780, 85539), (1170, 57026), (2340, 28513)]