66407380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255413}}^1$

素因数の和:255435

約数の個数: 24

約数和(自身を含む): 150183432

約数和(自身を除く): 83776052

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 255413, 510826, 1021652, 1277065, 2554130, 3320369, 5108260, 6640738, 13281476, 16601845, 33203690, 66407380]

約数ペア:

[(1, 66407380), (2, 33203690), (4, 16601845), (5, 13281476), (10, 6640738), (13, 5108260), (20, 3320369), (26, 2554130), (52, 1277065), (65, 1021652), (130, 510826), (260, 255413)]