20595900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5281}}^1$

素因数の和:5311

約数の個数: 72

約数和(自身を含む): 64186864

約数和(自身を除く): 43590964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5281, 10562, 15843, 21124, 26405, 31686, 52810, 63372, 68653, 79215, 105620, 132025, 137306, 158430, 205959, 264050, 274612, 316860, 343265, 396075, 411918, 528100, 686530, 792150, 823836, 1029795, 1373060, 1584300, 1716325, 2059590, 3432650, 4119180, 5148975, 6865300, 10297950, 20595900]

約数ペア:

[(1, 20595900), (2, 10297950), (3, 6865300), (4, 5148975), (5, 4119180), (6, 3432650), (10, 2059590), (12, 1716325), (13, 1584300), (15, 1373060), (20, 1029795), (25, 823836), (26, 792150), (30, 686530), (39, 528100), (50, 411918), (52, 396075), (60, 343265), (65, 316860), (75, 274612), (78, 264050), (100, 205959), (130, 158430), (150, 137306), (156, 132025), (195, 105620), (260, 79215), (300, 68653), (325, 63372), (390, 52810), (650, 31686), (780, 26405), (975, 21124), (1300, 15843), (1950, 10562), (3900, 5281)]