3888890915

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{21529}}^1$

素因数の和:21951

約数の個数: 32

約数和(自身を含む): 5758327680

約数和(自身を除く): 1869436765

約数列:

[1, 5, 7, 13, 35, 65, 91, 397, 455, 1985, 2779, 5161, 13895, 21529, 25805, 36127, 107645, 150703, 180635, 279877, 753515, 1399385, 1959139, 8547013, 9795695, 42735065, 59829091, 111111169, 299145455, 555555845, 777778183, 3888890915]

約数ペア:

[(1, 3888890915), (5, 777778183), (7, 555555845), (13, 299145455), (35, 111111169), (65, 59829091), (91, 42735065), (397, 9795695), (455, 8547013), (1985, 1959139), (2779, 1399385), (5161, 753515), (13895, 279877), (21529, 180635), (25805, 150703), (36127, 107645)]