64788260

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61121}}^1$

素因数の和:61183

約数の個数: 24

約数和(自身を含む): 138624696

約数和(自身を除く): 73836436

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 61121, 122242, 244484, 305605, 611210, 1222420, 3239413, 6478826, 12957652, 16197065, 32394130, 64788260]

約数ペア:

[(1, 64788260), (2, 32394130), (4, 16197065), (5, 12957652), (10, 6478826), (20, 3239413), (53, 1222420), (106, 611210), (212, 305605), (265, 244484), (530, 122242), (1060, 61121)]