20472405

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2477}}^1$

素因数の和:2533

約数の個数: 32

約数和(自身を含む): 35683200

約数和(自身を除く): 15210795

約数列:

[1, 3, 5, 15, 19, 29, 57, 87, 95, 145, 285, 435, 551, 1653, 2477, 2755, 7431, 8265, 12385, 37155, 47063, 71833, 141189, 215499, 235315, 359165, 705945, 1077495, 1364827, 4094481, 6824135, 20472405]

約数ペア:

[(1, 20472405), (3, 6824135), (5, 4094481), (15, 1364827), (19, 1077495), (29, 705945), (57, 359165), (87, 235315), (95, 215499), (145, 141189), (285, 71833), (435, 47063), (551, 37155), (1653, 12385), (2477, 8265), (2755, 7431)]