309236005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^2\times {\mathrm{83}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 427424256

約数和(自身を除く): 118188251

約数列:

[1, 5, 13, 31, 43, 65, 83, 155, 215, 403, 415, 559, 1079, 1333, 1849, 2015, 2573, 2795, 3569, 5395, 6665, 9245, 12865, 17329, 17845, 24037, 33449, 46397, 57319, 86645, 110639, 120185, 153467, 167245, 231985, 286595, 553195, 745147, 767335, 1438307, 1995071, 3725735, 4757477, 7191535, 9975355, 23787385, 61847201, 309236005]

約数ペア:

[(1, 309236005), (5, 61847201), (13, 23787385), (31, 9975355), (43, 7191535), (65, 4757477), (83, 3725735), (155, 1995071), (215, 1438307), (403, 767335), (415, 745147), (559, 553195), (1079, 286595), (1333, 231985), (1849, 167245), (2015, 153467), (2573, 120185), (2795, 110639), (3569, 86645), (5395, 57319), (6665, 46397), (9245, 33449), (12865, 24037), (17329, 17845)]