20431500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:332

約数の個数: 96

約数和(自身を含む): 60854976

約数和(自身を除く): 40423476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 53, 60, 75, 100, 106, 125, 150, 159, 212, 250, 257, 265, 300, 318, 375, 500, 514, 530, 636, 750, 771, 795, 1028, 1060, 1285, 1325, 1500, 1542, 1590, 2570, 2650, 3084, 3180, 3855, 3975, 5140, 5300, 6425, 6625, 7710, 7950, 12850, 13250, 13621, 15420, 15900, 19275, 19875, 25700, 26500, 27242, 32125, 38550, 39750, 40863, 54484, 64250, 68105, 77100, 79500, 81726, 96375, 128500, 136210, 163452, 192750, 204315, 272420, 340525, 385500, 408630, 681050, 817260, 1021575, 1362100, 1702625, 2043150, 3405250, 4086300, 5107875, 6810500, 10215750, 20431500]

約数ペア:

[(1, 20431500), (2, 10215750), (3, 6810500), (4, 5107875), (5, 4086300), (6, 3405250), (10, 2043150), (12, 1702625), (15, 1362100), (20, 1021575), (25, 817260), (30, 681050), (50, 408630), (53, 385500), (60, 340525), (75, 272420), (100, 204315), (106, 192750), (125, 163452), (150, 136210), (159, 128500), (212, 96375), (250, 81726), (257, 79500), (265, 77100), (300, 68105), (318, 64250), (375, 54484), (500, 40863), (514, 39750), (530, 38550), (636, 32125), (750, 27242), (771, 26500), (795, 25700), (1028, 19875), (1060, 19275), (1285, 15900), (1325, 15420), (1500, 13621), (1542, 13250), (1590, 12850), (2570, 7950), (2650, 7710), (3084, 6625), (3180, 6425), (3855, 5300), (3975, 5140)]