51286140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4013}}^1$

素因数の和:4099

約数の個数: 72

約数和(自身を含む): 157798368

約数和(自身を除く): 106512228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2556, 3195, 4013, 4260, 6390, 8026, 12039, 12780, 16052, 20065, 24078, 36117, 40130, 48156, 60195, 72234, 80260, 120390, 144468, 180585, 240780, 284923, 361170, 569846, 722340, 854769, 1139692, 1424615, 1709538, 2564307, 2849230, 3419076, 4273845, 5128614, 5698460, 8547690, 10257228, 12821535, 17095380, 25643070, 51286140]

約数ペア:

[(1, 51286140), (2, 25643070), (3, 17095380), (4, 12821535), (5, 10257228), (6, 8547690), (9, 5698460), (10, 5128614), (12, 4273845), (15, 3419076), (18, 2849230), (20, 2564307), (30, 1709538), (36, 1424615), (45, 1139692), (60, 854769), (71, 722340), (90, 569846), (142, 361170), (180, 284923), (213, 240780), (284, 180585), (355, 144468), (426, 120390), (639, 80260), (710, 72234), (852, 60195), (1065, 48156), (1278, 40130), (1420, 36117), (2130, 24078), (2556, 20065), (3195, 16052), (4013, 12780), (4260, 12039), (6390, 8026)]