28919380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1$

素因数の和:481

約数の個数: 96

約数和(自身を含む): 76204800

約数和(自身を除く): 47285420

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 29, 34, 35, 58, 68, 70, 85, 116, 119, 140, 145, 170, 203, 238, 290, 340, 406, 419, 476, 493, 580, 595, 812, 838, 986, 1015, 1190, 1676, 1972, 2030, 2095, 2380, 2465, 2933, 3451, 4060, 4190, 4930, 5866, 6902, 7123, 8380, 9860, 11732, 12151, 13804, 14246, 14665, 17255, 24302, 28492, 29330, 34510, 35615, 48604, 49861, 58660, 60755, 69020, 71230, 85057, 99722, 121510, 142460, 170114, 199444, 206567, 243020, 249305, 340228, 413134, 425285, 498610, 826268, 850570, 997220, 1032835, 1445969, 1701140, 2065670, 2891938, 4131340, 5783876, 7229845, 14459690, 28919380]

約数ペア:

[(1, 28919380), (2, 14459690), (4, 7229845), (5, 5783876), (7, 4131340), (10, 2891938), (14, 2065670), (17, 1701140), (20, 1445969), (28, 1032835), (29, 997220), (34, 850570), (35, 826268), (58, 498610), (68, 425285), (70, 413134), (85, 340228), (116, 249305), (119, 243020), (140, 206567), (145, 199444), (170, 170114), (203, 142460), (238, 121510), (290, 99722), (340, 85057), (406, 71230), (419, 69020), (476, 60755), (493, 58660), (580, 49861), (595, 48604), (812, 35615), (838, 34510), (986, 29330), (1015, 28492), (1190, 24302), (1676, 17255), (1972, 14665), (2030, 14246), (2095, 13804), (2380, 12151), (2465, 11732), (2933, 9860), (3451, 8380), (4060, 7123), (4190, 6902), (4930, 5866)]