8079220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 17837568

約数和(自身を除く): 9758348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 157, 166, 310, 314, 332, 415, 620, 628, 785, 830, 1570, 1660, 2573, 3140, 4867, 5146, 9734, 10292, 12865, 13031, 19468, 24335, 25730, 26062, 48670, 51460, 52124, 65155, 97340, 130310, 260620, 403961, 807922, 1615844, 2019805, 4039610, 8079220]

約数ペア:

[(1, 8079220), (2, 4039610), (4, 2019805), (5, 1615844), (10, 807922), (20, 403961), (31, 260620), (62, 130310), (83, 97340), (124, 65155), (155, 52124), (157, 51460), (166, 48670), (310, 26062), (314, 25730), (332, 24335), (415, 19468), (620, 13031), (628, 12865), (785, 10292), (830, 9734), (1570, 5146), (1660, 4867), (2573, 3140)]