20289750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2081}}^1$

素因数の和:2114

約数の個数: 64

約数和(自身を含む): 54565056

約数和(自身を除く): 34275306

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 2081, 3250, 4162, 4875, 6243, 9750, 10405, 12486, 20810, 27053, 31215, 52025, 54106, 62430, 81159, 104050, 135265, 156075, 162318, 260125, 270530, 312150, 405795, 520250, 676325, 780375, 811590, 1352650, 1560750, 2028975, 3381625, 4057950, 6763250, 10144875, 20289750]

約数ペア:

[(1, 20289750), (2, 10144875), (3, 6763250), (5, 4057950), (6, 3381625), (10, 2028975), (13, 1560750), (15, 1352650), (25, 811590), (26, 780375), (30, 676325), (39, 520250), (50, 405795), (65, 312150), (75, 270530), (78, 260125), (125, 162318), (130, 156075), (150, 135265), (195, 104050), (250, 81159), (325, 62430), (375, 54106), (390, 52025), (650, 31215), (750, 27053), (975, 20810), (1625, 12486), (1950, 10405), (2081, 9750), (3250, 6243), (4162, 4875)]