205657380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{126949}}^1$

素因数の和:126970

約数の個数: 60

約数和(自身を含む): 645159900

約数和(自身を除く): 439502520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 126949, 253898, 380847, 507796, 634745, 761694, 1142541, 1269490, 1523388, 1904235, 2285082, 2538980, 3427623, 3808470, 4570164, 5712705, 6855246, 7616940, 10282869, 11425410, 13710492, 17138115, 20565738, 22850820, 34276230, 41131476, 51414345, 68552460, 102828690, 205657380]

約数ペア:

[(1, 205657380), (2, 102828690), (3, 68552460), (4, 51414345), (5, 41131476), (6, 34276230), (9, 22850820), (10, 20565738), (12, 17138115), (15, 13710492), (18, 11425410), (20, 10282869), (27, 7616940), (30, 6855246), (36, 5712705), (45, 4570164), (54, 3808470), (60, 3427623), (81, 2538980), (90, 2285082), (108, 1904235), (135, 1523388), (162, 1269490), (180, 1142541), (270, 761694), (324, 634745), (405, 507796), (540, 380847), (810, 253898), (1620, 126949)]