20864025

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1019}}^1$

素因数の和:1055

約数の個数: 72

約数和(自身を含む): 46038720

約数和(自身を除く): 25174695

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 35, 39, 45, 63, 65, 75, 91, 105, 117, 175, 195, 225, 273, 315, 325, 455, 525, 585, 819, 975, 1019, 1365, 1575, 2275, 2925, 3057, 4095, 5095, 6825, 7133, 9171, 13247, 15285, 20475, 21399, 25475, 35665, 39741, 45855, 64197, 66235, 76425, 92729, 106995, 119223, 178325, 198705, 229275, 278187, 320985, 331175, 463645, 534975, 596115, 834561, 993525, 1390935, 1604925, 2318225, 2980575, 4172805, 6954675, 20864025]

約数ペア:

[(1, 20864025), (3, 6954675), (5, 4172805), (7, 2980575), (9, 2318225), (13, 1604925), (15, 1390935), (21, 993525), (25, 834561), (35, 596115), (39, 534975), (45, 463645), (63, 331175), (65, 320985), (75, 278187), (91, 229275), (105, 198705), (117, 178325), (175, 119223), (195, 106995), (225, 92729), (273, 76425), (315, 66235), (325, 64197), (455, 45855), (525, 39741), (585, 35665), (819, 25475), (975, 21399), (1019, 20475), (1365, 15285), (1575, 13247), (2275, 9171), (2925, 7133), (3057, 6825), (4095, 5095)]