20647652

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:236

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 19269148

約数列:

[1, 2, 4, 23, 29, 46, 58, 71, 92, 109, 116, 142, 218, 284, 436, 667, 1334, 1633, 2059, 2507, 2668, 3161, 3266, 4118, 5014, 6322, 6532, 7739, 8236, 10028, 12644, 15478, 30956, 47357, 72703, 94714, 145406, 177997, 189428, 224431, 290812, 355994, 448862, 711988, 897724, 5161913, 10323826, 20647652]

約数ペア:

[(1, 20647652), (2, 10323826), (4, 5161913), (23, 897724), (29, 711988), (46, 448862), (58, 355994), (71, 290812), (92, 224431), (109, 189428), (116, 177997), (142, 145406), (218, 94714), (284, 72703), (436, 47357), (667, 30956), (1334, 15478), (1633, 12644), (2059, 10028), (2507, 8236), (2668, 7739), (3161, 6532), (3266, 6322), (4118, 5014)]