128742020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1187}}^1$

素因数の和:1253

約数の個数: 96

約数和(自身を含む): 323326080

約数和(自身を除く): 194584060

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 29, 34, 44, 55, 58, 68, 85, 110, 116, 145, 170, 187, 220, 290, 319, 340, 374, 493, 580, 638, 748, 935, 986, 1187, 1276, 1595, 1870, 1972, 2374, 2465, 3190, 3740, 4748, 4930, 5423, 5935, 6380, 9860, 10846, 11870, 13057, 20179, 21692, 23740, 26114, 27115, 34423, 40358, 52228, 54230, 65285, 68846, 80716, 100895, 108460, 130570, 137692, 172115, 201790, 221969, 261140, 344230, 378653, 403580, 443938, 585191, 688460, 757306, 887876, 1109845, 1170382, 1514612, 1893265, 2219690, 2340764, 2925955, 3786530, 4439380, 5851910, 6437101, 7573060, 11703820, 12874202, 25748404, 32185505, 64371010, 128742020]

約数ペア:

[(1, 128742020), (2, 64371010), (4, 32185505), (5, 25748404), (10, 12874202), (11, 11703820), (17, 7573060), (20, 6437101), (22, 5851910), (29, 4439380), (34, 3786530), (44, 2925955), (55, 2340764), (58, 2219690), (68, 1893265), (85, 1514612), (110, 1170382), (116, 1109845), (145, 887876), (170, 757306), (187, 688460), (220, 585191), (290, 443938), (319, 403580), (340, 378653), (374, 344230), (493, 261140), (580, 221969), (638, 201790), (748, 172115), (935, 137692), (986, 130570), (1187, 108460), (1276, 100895), (1595, 80716), (1870, 68846), (1972, 65285), (2374, 54230), (2465, 52228), (3190, 40358), (3740, 34423), (4748, 27115), (4930, 26114), (5423, 23740), (5935, 21692), (6380, 20179), (9860, 13057), (10846, 11870)]