20391150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{10457}}^1$

素因数の和:10485

約数の個数: 48

約数和(自身を含む): 54465264

約数和(自身を除く): 34074114

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 10457, 20914, 31371, 52285, 62742, 104570, 135941, 156855, 261425, 271882, 313710, 407823, 522850, 679705, 784275, 815646, 1359410, 1568550, 2039115, 3398525, 4078230, 6797050, 10195575, 20391150]

約数ペア:

[(1, 20391150), (2, 10195575), (3, 6797050), (5, 4078230), (6, 3398525), (10, 2039115), (13, 1568550), (15, 1359410), (25, 815646), (26, 784275), (30, 679705), (39, 522850), (50, 407823), (65, 313710), (75, 271882), (78, 261425), (130, 156855), (150, 135941), (195, 104570), (325, 62742), (390, 52285), (650, 31371), (975, 20914), (1950, 10457)]