4020765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 32

約数和(自身を含む): 7430400

約数和(自身を除く): 3409635

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 149, 257, 447, 745, 771, 1043, 1285, 1799, 2235, 3129, 3855, 5215, 5397, 8995, 15645, 26985, 38293, 114879, 191465, 268051, 574395, 804153, 1340255, 4020765]

約数ペア:

[(1, 4020765), (3, 1340255), (5, 804153), (7, 574395), (15, 268051), (21, 191465), (35, 114879), (105, 38293), (149, 26985), (257, 15645), (447, 8995), (745, 5397), (771, 5215), (1043, 3855), (1285, 3129), (1799, 2235)]