20380194

素因数分解:

$2^1\times 3^3\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 47393280

約数和(自身を除く): 27013086

約数列:

[1, 2, 3, 6, 9, 18, 27, 43, 54, 67, 86, 129, 131, 134, 201, 258, 262, 387, 393, 402, 603, 774, 786, 1161, 1179, 1206, 1809, 2322, 2358, 2881, 3537, 3618, 5633, 5762, 7074, 8643, 8777, 11266, 16899, 17286, 17554, 25929, 26331, 33798, 50697, 51858, 52662, 77787, 78993, 101394, 152091, 155574, 157986, 236979, 304182, 377411, 473958, 754822, 1132233, 2264466, 3396699, 6793398, 10190097, 20380194]

約数ペア:

[(1, 20380194), (2, 10190097), (3, 6793398), (6, 3396699), (9, 2264466), (18, 1132233), (27, 754822), (43, 473958), (54, 377411), (67, 304182), (86, 236979), (129, 157986), (131, 155574), (134, 152091), (201, 101394), (258, 78993), (262, 77787), (387, 52662), (393, 51858), (402, 50697), (603, 33798), (774, 26331), (786, 25929), (1161, 17554), (1179, 17286), (1206, 16899), (1809, 11266), (2322, 8777), (2358, 8643), (2881, 7074), (3537, 5762), (3618, 5633)]