20325960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{431}}^1$

素因数の和:579

約数の個数: 96

約数和(自身を含む): 66718080

約数和(自身を除く): 46392120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 131, 180, 262, 360, 393, 431, 524, 655, 786, 862, 1048, 1179, 1293, 1310, 1572, 1724, 1965, 2155, 2358, 2586, 2620, 3144, 3448, 3879, 3930, 4310, 4716, 5172, 5240, 5895, 6465, 7758, 7860, 8620, 9432, 10344, 11790, 12930, 15516, 15720, 17240, 19395, 23580, 25860, 31032, 38790, 47160, 51720, 56461, 77580, 112922, 155160, 169383, 225844, 282305, 338766, 451688, 508149, 564610, 677532, 846915, 1016298, 1129220, 1355064, 1693830, 2032596, 2258440, 2540745, 3387660, 4065192, 5081490, 6775320, 10162980, 20325960]

約数ペア:

[(1, 20325960), (2, 10162980), (3, 6775320), (4, 5081490), (5, 4065192), (6, 3387660), (8, 2540745), (9, 2258440), (10, 2032596), (12, 1693830), (15, 1355064), (18, 1129220), (20, 1016298), (24, 846915), (30, 677532), (36, 564610), (40, 508149), (45, 451688), (60, 338766), (72, 282305), (90, 225844), (120, 169383), (131, 155160), (180, 112922), (262, 77580), (360, 56461), (393, 51720), (431, 47160), (524, 38790), (655, 31032), (786, 25860), (862, 23580), (1048, 19395), (1179, 17240), (1293, 15720), (1310, 15516), (1572, 12930), (1724, 11790), (1965, 10344), (2155, 9432), (2358, 8620), (2586, 7860), (2620, 7758), (3144, 6465), (3448, 5895), (3879, 5240), (3930, 5172), (4310, 4716)]