645419194

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{40193}}^1$

素因数の和:40270

約数の個数: 32

約数和(自身を含む): 1173021696

約数和(自身を除く): 527602502

約数列:

[1, 2, 7, 14, 31, 37, 62, 74, 217, 259, 434, 518, 1147, 2294, 8029, 16058, 40193, 80386, 281351, 562702, 1245983, 1487141, 2491966, 2974282, 8721881, 10409987, 17443762, 20819974, 46101371, 92202742, 322709597, 645419194]

約数ペア:

[(1, 645419194), (2, 322709597), (7, 92202742), (14, 46101371), (31, 20819974), (37, 17443762), (62, 10409987), (74, 8721881), (217, 2974282), (259, 2491966), (434, 1487141), (518, 1245983), (1147, 562702), (2294, 281351), (8029, 80386), (16058, 40193)]