20201084810

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{15749}}^1$

素因数の和:15975

約数の個数: 64

約数和(自身を含む): 39417840000

約数和(自身を除く): 19216755190

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 157, 190, 215, 314, 430, 785, 817, 1570, 1634, 2983, 4085, 5966, 6751, 8170, 13502, 14915, 15749, 29830, 31498, 33755, 67510, 78745, 128269, 157490, 256538, 299231, 598462, 641345, 677207, 1282690, 1354414, 1496155, 2472593, 2992310, 3386035, 4945186, 6772070, 12362965, 12866933, 24725930, 25733866, 46979267, 64334665, 93958534, 106321499, 128669330, 212642998, 234896335, 469792670, 531607495, 1063214990, 2020108481, 4040216962, 10100542405, 20201084810]

約数ペア:

[(1, 20201084810), (2, 10100542405), (5, 4040216962), (10, 2020108481), (19, 1063214990), (38, 531607495), (43, 469792670), (86, 234896335), (95, 212642998), (157, 128669330), (190, 106321499), (215, 93958534), (314, 64334665), (430, 46979267), (785, 25733866), (817, 24725930), (1570, 12866933), (1634, 12362965), (2983, 6772070), (4085, 4945186), (5966, 3386035), (6751, 2992310), (8170, 2472593), (13502, 1496155), (14915, 1354414), (15749, 1282690), (29830, 677207), (31498, 641345), (33755, 598462), (67510, 299231), (78745, 256538), (128269, 157490)]