204477980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{1523}}^1$

素因数の和:1683

約数の個数: 72

約数和(自身を含む): 503486928

約数和(自身を除く): 299008948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 137, 140, 196, 245, 274, 490, 548, 685, 959, 980, 1370, 1523, 1918, 2740, 3046, 3836, 4795, 6092, 6713, 7615, 9590, 10661, 13426, 15230, 19180, 21322, 26852, 30460, 33565, 42644, 53305, 67130, 74627, 106610, 134260, 149254, 208651, 213220, 298508, 373135, 417302, 746270, 834604, 1043255, 1460557, 1492540, 2086510, 2921114, 4173020, 5842228, 7302785, 10223899, 14605570, 20447798, 29211140, 40895596, 51119495, 102238990, 204477980]

約数ペア:

[(1, 204477980), (2, 102238990), (4, 51119495), (5, 40895596), (7, 29211140), (10, 20447798), (14, 14605570), (20, 10223899), (28, 7302785), (35, 5842228), (49, 4173020), (70, 2921114), (98, 2086510), (137, 1492540), (140, 1460557), (196, 1043255), (245, 834604), (274, 746270), (490, 417302), (548, 373135), (685, 298508), (959, 213220), (980, 208651), (1370, 149254), (1523, 134260), (1918, 106610), (2740, 74627), (3046, 67130), (3836, 53305), (4795, 42644), (6092, 33565), (6713, 30460), (7615, 26852), (9590, 21322), (10661, 19180), (13426, 15230)]