421815390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{431}}^1$

素因数の和:578

約数の個数: 128

約数和(自身を含む): 1142138880

約数和(自身を除く): 720323490

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 19, 30, 34, 38, 51, 57, 85, 95, 101, 102, 114, 170, 190, 202, 255, 285, 303, 323, 431, 505, 510, 570, 606, 646, 862, 969, 1010, 1293, 1515, 1615, 1717, 1919, 1938, 2155, 2586, 3030, 3230, 3434, 3838, 4310, 4845, 5151, 5757, 6465, 7327, 8189, 8585, 9595, 9690, 10302, 11514, 12930, 14654, 16378, 17170, 19190, 21981, 24567, 25755, 28785, 32623, 36635, 40945, 43531, 43962, 49134, 51510, 57570, 65246, 73270, 81890, 87062, 97869, 109905, 122835, 130593, 139213, 163115, 195738, 217655, 219810, 245670, 261186, 278426, 326230, 417639, 435310, 489345, 652965, 696065, 740027, 827089, 835278, 978690, 1305930, 1392130, 1480054, 1654178, 2088195, 2220081, 2481267, 3700135, 4135445, 4176390, 4440162, 4962534, 7400270, 8270890, 11100405, 12406335, 14060513, 22200810, 24812670, 28121026, 42181539, 70302565, 84363078, 140605130, 210907695, 421815390]

約数ペア:

[(1, 421815390), (2, 210907695), (3, 140605130), (5, 84363078), (6, 70302565), (10, 42181539), (15, 28121026), (17, 24812670), (19, 22200810), (30, 14060513), (34, 12406335), (38, 11100405), (51, 8270890), (57, 7400270), (85, 4962534), (95, 4440162), (101, 4176390), (102, 4135445), (114, 3700135), (170, 2481267), (190, 2220081), (202, 2088195), (255, 1654178), (285, 1480054), (303, 1392130), (323, 1305930), (431, 978690), (505, 835278), (510, 827089), (570, 740027), (606, 696065), (646, 652965), (862, 489345), (969, 435310), (1010, 417639), (1293, 326230), (1515, 278426), (1615, 261186), (1717, 245670), (1919, 219810), (1938, 217655), (2155, 195738), (2586, 163115), (3030, 139213), (3230, 130593), (3434, 122835), (3838, 109905), (4310, 97869), (4845, 87062), (5151, 81890), (5757, 73270), (6465, 65246), (7327, 57570), (8189, 51510), (8585, 49134), (9595, 43962), (9690, 43531), (10302, 40945), (11514, 36635), (12930, 32623), (14654, 28785), (16378, 25755), (17170, 24567), (19190, 21981)]