1991475

素因数分解:

$3^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:236

約数の個数: 36

約数和(自身を含む): 3656016

約数和(自身を除く): 1664541

約数列:

[1, 3, 5, 9, 15, 25, 45, 53, 75, 159, 167, 225, 265, 477, 501, 795, 835, 1325, 1503, 2385, 2505, 3975, 4175, 7515, 8851, 11925, 12525, 26553, 37575, 44255, 79659, 132765, 221275, 398295, 663825, 1991475]

約数ペア:

[(1, 1991475), (3, 663825), (5, 398295), (9, 221275), (15, 132765), (25, 79659), (45, 44255), (53, 37575), (75, 26553), (159, 12525), (167, 11925), (225, 8851), (265, 7515), (477, 4175), (501, 3975), (795, 2505), (835, 2385), (1325, 1503)]