200421405

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{78137}}^1$

素因数の和:78170

約数の個数: 32

約数和(自身を含む): 375062400

約数和(自身を除く): 174640995

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 95, 135, 171, 285, 513, 855, 2565, 78137, 234411, 390685, 703233, 1172055, 1484603, 2109699, 3516165, 4453809, 7423015, 10548495, 13361427, 22269045, 40084281, 66807135, 200421405]

約数ペア:

[(1, 200421405), (3, 66807135), (5, 40084281), (9, 22269045), (15, 13361427), (19, 10548495), (27, 7423015), (45, 4453809), (57, 3516165), (95, 2109699), (135, 1484603), (171, 1172055), (285, 703233), (513, 390685), (855, 234411), (2565, 78137)]