68985975

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{21391}}^1$

素因数の和:21447

約数の個数: 24

約数和(自身を含む): 116714752

約数和(自身を除く): 47728777

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 21391, 64173, 106955, 320865, 534775, 919813, 1604325, 2759439, 4599065, 13797195, 22995325, 68985975]

約数ペア:

[(1, 68985975), (3, 22995325), (5, 13797195), (15, 4599065), (25, 2759439), (43, 1604325), (75, 919813), (129, 534775), (215, 320865), (645, 106955), (1075, 64173), (3225, 21391)]