20145965

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 28788480

約数和(自身を除く): 8642515

約数列:

[1, 5, 7, 35, 41, 101, 139, 205, 287, 505, 695, 707, 973, 1435, 3535, 4141, 4865, 5699, 14039, 20705, 28495, 28987, 39893, 70195, 98273, 144935, 199465, 491365, 575599, 2877995, 4029193, 20145965]

約数ペア:

[(1, 20145965), (5, 4029193), (7, 2877995), (35, 575599), (41, 491365), (101, 199465), (139, 144935), (205, 98273), (287, 70195), (505, 39893), (695, 28987), (707, 28495), (973, 20705), (1435, 14039), (3535, 5699), (4141, 4865)]