68988040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:463

約数の個数: 128

約数和(自身を含む): 187557120

約数和(自身を除く): 118569080

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 23, 34, 40, 44, 46, 55, 68, 85, 88, 92, 110, 115, 136, 170, 184, 187, 220, 230, 253, 340, 374, 391, 401, 440, 460, 506, 680, 748, 782, 802, 920, 935, 1012, 1265, 1496, 1564, 1604, 1870, 1955, 2005, 2024, 2530, 3128, 3208, 3740, 3910, 4010, 4301, 4411, 5060, 6817, 7480, 7820, 8020, 8602, 8822, 9223, 10120, 13634, 15640, 16040, 17204, 17644, 18446, 21505, 22055, 27268, 34085, 34408, 35288, 36892, 43010, 44110, 46115, 54536, 68170, 73784, 74987, 86020, 88220, 92230, 101453, 136340, 149974, 156791, 172040, 176440, 184460, 202906, 272680, 299948, 313582, 368920, 374935, 405812, 507265, 599896, 627164, 749870, 783955, 811624, 1014530, 1254328, 1499740, 1567910, 1724701, 2029060, 2999480, 3135820, 3449402, 4058120, 6271640, 6898804, 8623505, 13797608, 17247010, 34494020, 68988040]

約数ペア:

[(1, 68988040), (2, 34494020), (4, 17247010), (5, 13797608), (8, 8623505), (10, 6898804), (11, 6271640), (17, 4058120), (20, 3449402), (22, 3135820), (23, 2999480), (34, 2029060), (40, 1724701), (44, 1567910), (46, 1499740), (55, 1254328), (68, 1014530), (85, 811624), (88, 783955), (92, 749870), (110, 627164), (115, 599896), (136, 507265), (170, 405812), (184, 374935), (187, 368920), (220, 313582), (230, 299948), (253, 272680), (340, 202906), (374, 184460), (391, 176440), (401, 172040), (440, 156791), (460, 149974), (506, 136340), (680, 101453), (748, 92230), (782, 88220), (802, 86020), (920, 74987), (935, 73784), (1012, 68170), (1265, 54536), (1496, 46115), (1564, 44110), (1604, 43010), (1870, 36892), (1955, 35288), (2005, 34408), (2024, 34085), (2530, 27268), (3128, 22055), (3208, 21505), (3740, 18446), (3910, 17644), (4010, 17204), (4301, 16040), (4411, 15640), (5060, 13634), (6817, 10120), (7480, 9223), (7820, 8822), (8020, 8602)]