20658780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:656

約数の個数: 96

約数和(自身を含む): 65345280

約数和(自身を除く): 44686500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 67, 90, 108, 134, 135, 180, 201, 268, 270, 335, 402, 540, 571, 603, 670, 804, 1005, 1142, 1206, 1340, 1713, 1809, 2010, 2284, 2412, 2855, 3015, 3426, 3618, 4020, 5139, 5710, 6030, 6852, 7236, 8565, 9045, 10278, 11420, 12060, 15417, 17130, 18090, 20556, 25695, 30834, 34260, 36180, 38257, 51390, 61668, 76514, 77085, 102780, 114771, 153028, 154170, 191285, 229542, 308340, 344313, 382570, 459084, 573855, 688626, 765140, 1032939, 1147710, 1377252, 1721565, 2065878, 2295420, 3443130, 4131756, 5164695, 6886260, 10329390, 20658780]

約数ペア:

[(1, 20658780), (2, 10329390), (3, 6886260), (4, 5164695), (5, 4131756), (6, 3443130), (9, 2295420), (10, 2065878), (12, 1721565), (15, 1377252), (18, 1147710), (20, 1032939), (27, 765140), (30, 688626), (36, 573855), (45, 459084), (54, 382570), (60, 344313), (67, 308340), (90, 229542), (108, 191285), (134, 154170), (135, 153028), (180, 114771), (201, 102780), (268, 77085), (270, 76514), (335, 61668), (402, 51390), (540, 38257), (571, 36180), (603, 34260), (670, 30834), (804, 25695), (1005, 20556), (1142, 18090), (1206, 17130), (1340, 15417), (1713, 12060), (1809, 11420), (2010, 10278), (2284, 9045), (2412, 8565), (2855, 7236), (3015, 6852), (3426, 6030), (3618, 5710), (4020, 5139)]