64798740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18947}}^1$

素因数の和:18981

約数の個数: 72

約数和(自身を含む): 206912160

約数和(自身を除く): 142113420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 18947, 37894, 56841, 75788, 94735, 113682, 170523, 189470, 227364, 284205, 341046, 359993, 378940, 568410, 682092, 719986, 852615, 1079979, 1136820, 1439972, 1705230, 1799965, 2159958, 3239937, 3410460, 3599930, 4319916, 5399895, 6479874, 7199860, 10799790, 12959748, 16199685, 21599580, 32399370, 64798740]

約数ペア:

[(1, 64798740), (2, 32399370), (3, 21599580), (4, 16199685), (5, 12959748), (6, 10799790), (9, 7199860), (10, 6479874), (12, 5399895), (15, 4319916), (18, 3599930), (19, 3410460), (20, 3239937), (30, 2159958), (36, 1799965), (38, 1705230), (45, 1439972), (57, 1136820), (60, 1079979), (76, 852615), (90, 719986), (95, 682092), (114, 568410), (171, 378940), (180, 359993), (190, 341046), (228, 284205), (285, 227364), (342, 189470), (380, 170523), (570, 113682), (684, 94735), (855, 75788), (1140, 56841), (1710, 37894), (3420, 18947)]