201400520

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{21067}}^1$

素因数の和:21317

約数の個数: 32

約数和(自身を含む): 455068800

約数和(自身を除く): 253668280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 21067, 42134, 84268, 105335, 168536, 210670, 421340, 842680, 5035013, 10070026, 20140052, 25175065, 40280104, 50350130, 100700260, 201400520]

約数ペア:

[(1, 201400520), (2, 100700260), (4, 50350130), (5, 40280104), (8, 25175065), (10, 20140052), (20, 10070026), (40, 5035013), (239, 842680), (478, 421340), (956, 210670), (1195, 168536), (1912, 105335), (2390, 84268), (4780, 42134), (9560, 21067)]