18769840

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^2$

素因数の和:238

約数の個数: 60

約数和(自身を含む): 45992592

約数和(自身を除く): 27222752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 101, 115, 184, 202, 230, 368, 404, 460, 505, 808, 920, 1010, 1616, 1840, 2020, 2323, 4040, 4646, 8080, 9292, 10201, 11615, 18584, 20402, 23230, 37168, 40804, 46460, 51005, 81608, 92920, 102010, 163216, 185840, 204020, 234623, 408040, 469246, 816080, 938492, 1173115, 1876984, 2346230, 3753968, 4692460, 9384920, 18769840]

約数ペア:

[(1, 18769840), (2, 9384920), (4, 4692460), (5, 3753968), (8, 2346230), (10, 1876984), (16, 1173115), (20, 938492), (23, 816080), (40, 469246), (46, 408040), (80, 234623), (92, 204020), (101, 185840), (115, 163216), (184, 102010), (202, 92920), (230, 81608), (368, 51005), (404, 46460), (460, 40804), (505, 37168), (808, 23230), (920, 20402), (1010, 18584), (1616, 11615), (1840, 10201), (2020, 9292), (2323, 8080), (4040, 4646)]