87508660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{157}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 197686440

約数和(自身を除く): 110177780

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 157, 290, 310, 314, 580, 620, 628, 785, 899, 961, 1570, 1798, 1922, 3140, 3596, 3844, 4495, 4553, 4805, 4867, 8990, 9106, 9610, 9734, 17980, 18212, 19220, 19468, 22765, 24335, 27869, 45530, 48670, 55738, 91060, 97340, 111476, 139345, 141143, 150877, 278690, 282286, 301754, 557380, 564572, 603508, 705715, 754385, 1411430, 1508770, 2822860, 3017540, 4375433, 8750866, 17501732, 21877165, 43754330, 87508660]

約数ペア:

[(1, 87508660), (2, 43754330), (4, 21877165), (5, 17501732), (10, 8750866), (20, 4375433), (29, 3017540), (31, 2822860), (58, 1508770), (62, 1411430), (116, 754385), (124, 705715), (145, 603508), (155, 564572), (157, 557380), (290, 301754), (310, 282286), (314, 278690), (580, 150877), (620, 141143), (628, 139345), (785, 111476), (899, 97340), (961, 91060), (1570, 55738), (1798, 48670), (1922, 45530), (3140, 27869), (3596, 24335), (3844, 22765), (4495, 19468), (4553, 19220), (4805, 18212), (4867, 17980), (8990, 9734), (9106, 9610)]