81127980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{16693}}^1$

素因数の和:16717

約数の個数: 72

約数和(自身を含む): 255217872

約数和(自身を除く): 174089892

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 16693, 33386, 50079, 66772, 83465, 100158, 150237, 166930, 200316, 250395, 300474, 333860, 450711, 500790, 600948, 751185, 901422, 1001580, 1352133, 1502370, 1802844, 2253555, 2704266, 3004740, 4056399, 4507110, 5408532, 6760665, 8112798, 9014220, 13521330, 16225596, 20281995, 27042660, 40563990, 81127980]

約数ペア:

[(1, 81127980), (2, 40563990), (3, 27042660), (4, 20281995), (5, 16225596), (6, 13521330), (9, 9014220), (10, 8112798), (12, 6760665), (15, 5408532), (18, 4507110), (20, 4056399), (27, 3004740), (30, 2704266), (36, 2253555), (45, 1802844), (54, 1502370), (60, 1352133), (81, 1001580), (90, 901422), (108, 751185), (135, 600948), (162, 500790), (180, 450711), (243, 333860), (270, 300474), (324, 250395), (405, 200316), (486, 166930), (540, 150237), (810, 100158), (972, 83465), (1215, 66772), (1620, 50079), (2430, 33386), (4860, 16693)]