51643980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:541

約数の個数: 120

約数和(自身を含む): 164656800

約数和(自身を除く): 113012820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 81, 90, 108, 135, 142, 162, 180, 213, 270, 284, 324, 355, 405, 426, 449, 540, 639, 710, 810, 852, 898, 1065, 1278, 1347, 1420, 1620, 1796, 1917, 2130, 2245, 2556, 2694, 3195, 3834, 4041, 4260, 4490, 5388, 5751, 6390, 6735, 7668, 8082, 8980, 9585, 11502, 12123, 12780, 13470, 16164, 19170, 20205, 23004, 24246, 26940, 28755, 31879, 36369, 38340, 40410, 48492, 57510, 60615, 63758, 72738, 80820, 95637, 115020, 121230, 127516, 145476, 159395, 181845, 191274, 242460, 286911, 318790, 363690, 382548, 478185, 573822, 637580, 727380, 860733, 956370, 1147644, 1434555, 1721466, 1912740, 2582199, 2869110, 3442932, 4303665, 5164398, 5738220, 8607330, 10328796, 12910995, 17214660, 25821990, 51643980]

約数ペア:

[(1, 51643980), (2, 25821990), (3, 17214660), (4, 12910995), (5, 10328796), (6, 8607330), (9, 5738220), (10, 5164398), (12, 4303665), (15, 3442932), (18, 2869110), (20, 2582199), (27, 1912740), (30, 1721466), (36, 1434555), (45, 1147644), (54, 956370), (60, 860733), (71, 727380), (81, 637580), (90, 573822), (108, 478185), (135, 382548), (142, 363690), (162, 318790), (180, 286911), (213, 242460), (270, 191274), (284, 181845), (324, 159395), (355, 145476), (405, 127516), (426, 121230), (449, 115020), (540, 95637), (639, 80820), (710, 72738), (810, 63758), (852, 60615), (898, 57510), (1065, 48492), (1278, 40410), (1347, 38340), (1420, 36369), (1620, 31879), (1796, 28755), (1917, 26940), (2130, 24246), (2245, 23004), (2556, 20205), (2694, 19170), (3195, 16164), (3834, 13470), (4041, 12780), (4260, 12123), (4490, 11502), (5388, 9585), (5751, 8980), (6390, 8082), (6735, 7668)]