21064160

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:101

約数の個数: 144

約数和(自身を含む): 58106160

約数和(自身を除く): 37042000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 41, 52, 65, 76, 80, 82, 95, 104, 130, 152, 160, 164, 169, 190, 205, 208, 247, 260, 304, 328, 338, 380, 410, 416, 494, 520, 533, 608, 656, 676, 760, 779, 820, 845, 988, 1040, 1066, 1235, 1312, 1352, 1520, 1558, 1640, 1690, 1976, 2080, 2132, 2470, 2665, 2704, 3040, 3116, 3211, 3280, 3380, 3895, 3952, 4264, 4940, 5330, 5408, 6232, 6422, 6560, 6760, 6929, 7790, 7904, 8528, 9880, 10127, 10660, 12464, 12844, 13520, 13858, 15580, 16055, 17056, 19760, 20254, 21320, 24928, 25688, 27040, 27716, 31160, 32110, 34645, 39520, 40508, 42640, 50635, 51376, 55432, 62320, 64220, 69290, 81016, 85280, 101270, 102752, 110864, 124640, 128440, 131651, 138580, 162032, 202540, 221728, 256880, 263302, 277160, 324064, 405080, 513760, 526604, 554320, 658255, 810160, 1053208, 1108640, 1316510, 1620320, 2106416, 2633020, 4212832, 5266040, 10532080, 21064160]

約数ペア:

[(1, 21064160), (2, 10532080), (4, 5266040), (5, 4212832), (8, 2633020), (10, 2106416), (13, 1620320), (16, 1316510), (19, 1108640), (20, 1053208), (26, 810160), (32, 658255), (38, 554320), (40, 526604), (41, 513760), (52, 405080), (65, 324064), (76, 277160), (80, 263302), (82, 256880), (95, 221728), (104, 202540), (130, 162032), (152, 138580), (160, 131651), (164, 128440), (169, 124640), (190, 110864), (205, 102752), (208, 101270), (247, 85280), (260, 81016), (304, 69290), (328, 64220), (338, 62320), (380, 55432), (410, 51376), (416, 50635), (494, 42640), (520, 40508), (533, 39520), (608, 34645), (656, 32110), (676, 31160), (760, 27716), (779, 27040), (820, 25688), (845, 24928), (988, 21320), (1040, 20254), (1066, 19760), (1235, 17056), (1312, 16055), (1352, 15580), (1520, 13858), (1558, 13520), (1640, 12844), (1690, 12464), (1976, 10660), (2080, 10127), (2132, 9880), (2470, 8528), (2665, 7904), (2704, 7790), (3040, 6929), (3116, 6760), (3211, 6560), (3280, 6422), (3380, 6232), (3895, 5408), (3952, 5330), (4264, 4940)]