81412660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:545

約数の個数: 96

約数和(自身を含む): 209986560

約数和(自身を除く): 128573900

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 79, 85, 119, 140, 158, 170, 238, 316, 340, 395, 433, 476, 553, 595, 790, 866, 1106, 1190, 1343, 1580, 1732, 2165, 2212, 2380, 2686, 2765, 3031, 4330, 5372, 5530, 6062, 6715, 7361, 8660, 9401, 11060, 12124, 13430, 14722, 15155, 18802, 26860, 29444, 30310, 34207, 36805, 37604, 47005, 51527, 60620, 68414, 73610, 94010, 103054, 136828, 147220, 171035, 188020, 206108, 239449, 257635, 342070, 478898, 515270, 581519, 684140, 957796, 1030540, 1163038, 1197245, 2326076, 2394490, 2907595, 4070633, 4788980, 5815190, 8141266, 11630380, 16282532, 20353165, 40706330, 81412660]

約数ペア:

[(1, 81412660), (2, 40706330), (4, 20353165), (5, 16282532), (7, 11630380), (10, 8141266), (14, 5815190), (17, 4788980), (20, 4070633), (28, 2907595), (34, 2394490), (35, 2326076), (68, 1197245), (70, 1163038), (79, 1030540), (85, 957796), (119, 684140), (140, 581519), (158, 515270), (170, 478898), (238, 342070), (316, 257635), (340, 239449), (395, 206108), (433, 188020), (476, 171035), (553, 147220), (595, 136828), (790, 103054), (866, 94010), (1106, 73610), (1190, 68414), (1343, 60620), (1580, 51527), (1732, 47005), (2165, 37604), (2212, 36805), (2380, 34207), (2686, 30310), (2765, 29444), (3031, 26860), (4330, 18802), (5372, 15155), (5530, 14722), (6062, 13430), (6715, 12124), (7361, 11060), (8660, 9401)]