31621720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{60811}}^1$

素因数の和:60835

約数の個数: 32

約数和(自身を含む): 76623120

約数和(自身を除く): 45001400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 60811, 121622, 243244, 304055, 486488, 608110, 790543, 1216220, 1581086, 2432440, 3162172, 3952715, 6324344, 7905430, 15810860, 31621720]

約数ペア:

[(1, 31621720), (2, 15810860), (4, 7905430), (5, 6324344), (8, 3952715), (10, 3162172), (13, 2432440), (20, 1581086), (26, 1216220), (40, 790543), (52, 608110), (65, 486488), (104, 304055), (130, 243244), (260, 121622), (520, 60811)]