18974001808

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{659}}^1\times {\mathrm{41849}}^1$

素因数の和:42559

約数の個数: 40

約数和(自身を含む): 37675044000

約数和(自身を除く): 18701042192

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 659, 688, 1318, 2636, 5272, 10544, 28337, 41849, 56674, 83698, 113348, 167396, 226696, 334792, 453392, 669584, 1799507, 3599014, 7198028, 14396056, 27578491, 28792112, 55156982, 110313964, 220627928, 441255856, 1185875113, 2371750226, 4743500452, 9487000904, 18974001808]

約数ペア:

[(1, 18974001808), (2, 9487000904), (4, 4743500452), (8, 2371750226), (16, 1185875113), (43, 441255856), (86, 220627928), (172, 110313964), (344, 55156982), (659, 28792112), (688, 27578491), (1318, 14396056), (2636, 7198028), (5272, 3599014), (10544, 1799507), (28337, 669584), (41849, 453392), (56674, 334792), (83698, 226696), (113348, 167396)]