21642400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2081}}^1$

素因数の和:2114

約数の個数: 72

約数和(自身を含む): 56926044

約数和(自身を除く): 35283644

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2081, 2600, 4162, 5200, 8324, 10400, 10405, 16648, 20810, 27053, 33296, 41620, 52025, 54106, 66592, 83240, 104050, 108212, 135265, 166480, 208100, 216424, 270530, 332960, 416200, 432848, 541060, 676325, 832400, 865696, 1082120, 1352650, 1664800, 2164240, 2705300, 4328480, 5410600, 10821200, 21642400]

約数ペア:

[(1, 21642400), (2, 10821200), (4, 5410600), (5, 4328480), (8, 2705300), (10, 2164240), (13, 1664800), (16, 1352650), (20, 1082120), (25, 865696), (26, 832400), (32, 676325), (40, 541060), (50, 432848), (52, 416200), (65, 332960), (80, 270530), (100, 216424), (104, 208100), (130, 166480), (160, 135265), (200, 108212), (208, 104050), (260, 83240), (325, 66592), (400, 54106), (416, 52025), (520, 41620), (650, 33296), (800, 27053), (1040, 20810), (1300, 16648), (2080, 10405), (2081, 10400), (2600, 8324), (4162, 5200)]