210312140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:343

約数の個数: 96

約数和(自身を含む): 485802240

約数和(自身を除く): 275490100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 61, 76, 86, 95, 122, 172, 190, 211, 215, 244, 305, 380, 422, 430, 610, 817, 844, 860, 1055, 1159, 1220, 1634, 2110, 2318, 2623, 3268, 4009, 4085, 4220, 4636, 5246, 5795, 8018, 8170, 9073, 10492, 11590, 12871, 13115, 16036, 16340, 18146, 20045, 23180, 25742, 26230, 36292, 40090, 45365, 49837, 51484, 52460, 64355, 80180, 90730, 99674, 128710, 172387, 181460, 199348, 244549, 249185, 257420, 344774, 489098, 498370, 553453, 689548, 861935, 978196, 996740, 1106906, 1222745, 1723870, 2213812, 2445490, 2767265, 3447740, 4890980, 5534530, 10515607, 11069060, 21031214, 42062428, 52578035, 105156070, 210312140]

約数ペア:

[(1, 210312140), (2, 105156070), (4, 52578035), (5, 42062428), (10, 21031214), (19, 11069060), (20, 10515607), (38, 5534530), (43, 4890980), (61, 3447740), (76, 2767265), (86, 2445490), (95, 2213812), (122, 1723870), (172, 1222745), (190, 1106906), (211, 996740), (215, 978196), (244, 861935), (305, 689548), (380, 553453), (422, 498370), (430, 489098), (610, 344774), (817, 257420), (844, 249185), (860, 244549), (1055, 199348), (1159, 181460), (1220, 172387), (1634, 128710), (2110, 99674), (2318, 90730), (2623, 80180), (3268, 64355), (4009, 52460), (4085, 51484), (4220, 49837), (4636, 45365), (5246, 40090), (5795, 36292), (8018, 26230), (8170, 25742), (9073, 23180), (10492, 20045), (11590, 18146), (12871, 16340), (13115, 16036)]