81141340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{331}}^1$

素因数の和:467

約数の個数: 96

約数和(自身を含む): 208825344

約数和(自身を除く): 127684004

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 103, 119, 140, 170, 206, 238, 331, 340, 412, 476, 515, 595, 662, 721, 1030, 1190, 1324, 1442, 1655, 1751, 2060, 2317, 2380, 2884, 3310, 3502, 3605, 4634, 5627, 6620, 7004, 7210, 8755, 9268, 11254, 11585, 12257, 14420, 17510, 22508, 23170, 24514, 28135, 34093, 35020, 39389, 46340, 49028, 56270, 61285, 68186, 78778, 112540, 122570, 136372, 157556, 170465, 196945, 238651, 245140, 340930, 393890, 477302, 579581, 681860, 787780, 954604, 1159162, 1193255, 2318324, 2386510, 2897905, 4057067, 4773020, 5795810, 8114134, 11591620, 16228268, 20285335, 40570670, 81141340]

約数ペア:

[(1, 81141340), (2, 40570670), (4, 20285335), (5, 16228268), (7, 11591620), (10, 8114134), (14, 5795810), (17, 4773020), (20, 4057067), (28, 2897905), (34, 2386510), (35, 2318324), (68, 1193255), (70, 1159162), (85, 954604), (103, 787780), (119, 681860), (140, 579581), (170, 477302), (206, 393890), (238, 340930), (331, 245140), (340, 238651), (412, 196945), (476, 170465), (515, 157556), (595, 136372), (662, 122570), (721, 112540), (1030, 78778), (1190, 68186), (1324, 61285), (1442, 56270), (1655, 49028), (1751, 46340), (2060, 39389), (2317, 35020), (2380, 34093), (2884, 28135), (3310, 24514), (3502, 23170), (3605, 22508), (4634, 17510), (5627, 14420), (6620, 12257), (7004, 11585), (7210, 11254), (8755, 9268)]