81898530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{683}}^1$

素因数の和:1271

約数の個数: 64

約数和(自身を含む): 225358848

約数和(自身を除く): 143460318

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 571, 683, 1142, 1366, 1713, 2049, 2855, 3415, 3426, 3997, 4098, 4781, 5710, 6830, 7994, 8565, 9562, 10245, 11991, 14343, 17130, 19985, 20490, 23905, 23982, 28686, 39970, 47810, 59955, 71715, 119910, 143430, 389993, 779986, 1169979, 1949965, 2339958, 2729951, 3899930, 5459902, 5849895, 8189853, 11699790, 13649755, 16379706, 27299510, 40949265, 81898530]

約数ペア:

[(1, 81898530), (2, 40949265), (3, 27299510), (5, 16379706), (6, 13649755), (7, 11699790), (10, 8189853), (14, 5849895), (15, 5459902), (21, 3899930), (30, 2729951), (35, 2339958), (42, 1949965), (70, 1169979), (105, 779986), (210, 389993), (571, 143430), (683, 119910), (1142, 71715), (1366, 59955), (1713, 47810), (2049, 39970), (2855, 28686), (3415, 23982), (3426, 23905), (3997, 20490), (4098, 19985), (4781, 17130), (5710, 14343), (6830, 11991), (7994, 10245), (8565, 9562)]