20288200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{281}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 49960530

約数和(自身を除く): 29672330

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 281, 361, 380, 475, 562, 722, 760, 950, 1124, 1405, 1444, 1805, 1900, 2248, 2810, 2888, 3610, 3800, 5339, 5620, 7025, 7220, 9025, 10678, 11240, 14050, 14440, 18050, 21356, 26695, 28100, 36100, 42712, 53390, 56200, 72200, 101441, 106780, 133475, 202882, 213560, 266950, 405764, 507205, 533900, 811528, 1014410, 1067800, 2028820, 2536025, 4057640, 5072050, 10144100, 20288200]

約数ペア:

[(1, 20288200), (2, 10144100), (4, 5072050), (5, 4057640), (8, 2536025), (10, 2028820), (19, 1067800), (20, 1014410), (25, 811528), (38, 533900), (40, 507205), (50, 405764), (76, 266950), (95, 213560), (100, 202882), (152, 133475), (190, 106780), (200, 101441), (281, 72200), (361, 56200), (380, 53390), (475, 42712), (562, 36100), (722, 28100), (760, 26695), (950, 21356), (1124, 18050), (1405, 14440), (1444, 14050), (1805, 11240), (1900, 10678), (2248, 9025), (2810, 7220), (2888, 7025), (3610, 5620), (3800, 5339)]