1640762530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{457}}^1$

素因数の和:859

約数の個数: 64

約数和(自身を含む): 3266998272

約数和(自身を除く): 1626235742

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 127, 254, 257, 457, 514, 635, 914, 1270, 1285, 1397, 2285, 2570, 2794, 2827, 4570, 5027, 5654, 6985, 10054, 13970, 14135, 25135, 28270, 32639, 50270, 58039, 65278, 116078, 117449, 163195, 234898, 290195, 326390, 359029, 580390, 587245, 638429, 718058, 1174490, 1276858, 1291939, 1795145, 2583878, 3192145, 3590290, 6384290, 6459695, 12919390, 14916023, 29832046, 74580115, 149160230, 164076253, 328152506, 820381265, 1640762530]

約数ペア:

[(1, 1640762530), (2, 820381265), (5, 328152506), (10, 164076253), (11, 149160230), (22, 74580115), (55, 29832046), (110, 14916023), (127, 12919390), (254, 6459695), (257, 6384290), (457, 3590290), (514, 3192145), (635, 2583878), (914, 1795145), (1270, 1291939), (1285, 1276858), (1397, 1174490), (2285, 718058), (2570, 638429), (2794, 587245), (2827, 580390), (4570, 359029), (5027, 326390), (5654, 290195), (6985, 234898), (10054, 163195), (13970, 117449), (14135, 116078), (25135, 65278), (28270, 58039), (32639, 50270)]