21082400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^2\times {\mathrm{73}}^1$

素因数の和:131

約数の個数: 108

約数和(自身を含む): 55062882

約数和(自身を除く): 33980482

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 50, 73, 76, 80, 95, 100, 146, 152, 160, 190, 200, 292, 304, 361, 365, 380, 400, 475, 584, 608, 722, 730, 760, 800, 950, 1168, 1387, 1444, 1460, 1520, 1805, 1825, 1900, 2336, 2774, 2888, 2920, 3040, 3610, 3650, 3800, 5548, 5776, 5840, 6935, 7220, 7300, 7600, 9025, 11096, 11552, 11680, 13870, 14440, 14600, 15200, 18050, 22192, 26353, 27740, 28880, 29200, 34675, 36100, 44384, 52706, 55480, 57760, 58400, 69350, 72200, 105412, 110960, 131765, 138700, 144400, 210824, 221920, 263530, 277400, 288800, 421648, 527060, 554800, 658825, 843296, 1054120, 1109600, 1317650, 2108240, 2635300, 4216480, 5270600, 10541200, 21082400]

約数ペア:

[(1, 21082400), (2, 10541200), (4, 5270600), (5, 4216480), (8, 2635300), (10, 2108240), (16, 1317650), (19, 1109600), (20, 1054120), (25, 843296), (32, 658825), (38, 554800), (40, 527060), (50, 421648), (73, 288800), (76, 277400), (80, 263530), (95, 221920), (100, 210824), (146, 144400), (152, 138700), (160, 131765), (190, 110960), (200, 105412), (292, 72200), (304, 69350), (361, 58400), (365, 57760), (380, 55480), (400, 52706), (475, 44384), (584, 36100), (608, 34675), (722, 29200), (730, 28880), (760, 27740), (800, 26353), (950, 22192), (1168, 18050), (1387, 15200), (1444, 14600), (1460, 14440), (1520, 13870), (1805, 11680), (1825, 11552), (1900, 11096), (2336, 9025), (2774, 7600), (2888, 7300), (2920, 7220), (3040, 6935), (3610, 5840), (3650, 5776), (3800, 5548)]