20377875

素因数分解:

$3^1\times 5^3\times 7^2\times {\mathrm{1109}}^1$

素因数の和:1141

約数の個数: 48

約数和(自身を含む): 39480480

約数和(自身を除く): 19102605

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 125, 147, 175, 245, 375, 525, 735, 875, 1109, 1225, 2625, 3327, 3675, 5545, 6125, 7763, 16635, 18375, 23289, 27725, 38815, 54341, 83175, 116445, 138625, 163023, 194075, 271705, 415875, 582225, 815115, 970375, 1358525, 2911125, 4075575, 6792625, 20377875]

約数ペア:

[(1, 20377875), (3, 6792625), (5, 4075575), (7, 2911125), (15, 1358525), (21, 970375), (25, 815115), (35, 582225), (49, 415875), (75, 271705), (105, 194075), (125, 163023), (147, 138625), (175, 116445), (245, 83175), (375, 54341), (525, 38815), (735, 27725), (875, 23289), (1109, 18375), (1225, 16635), (2625, 7763), (3327, 6125), (3675, 5545)]