201880120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{388231}}^1$

素因数の和:388255

約数の個数: 32

約数和(自身を含む): 489172320

約数和(自身を除く): 287292200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 388231, 776462, 1552924, 1941155, 3105848, 3882310, 5047003, 7764620, 10094006, 15529240, 20188012, 25235015, 40376024, 50470030, 100940060, 201880120]

約数ペア:

[(1, 201880120), (2, 100940060), (4, 50470030), (5, 40376024), (8, 25235015), (10, 20188012), (13, 15529240), (20, 10094006), (26, 7764620), (40, 5047003), (52, 3882310), (65, 3105848), (104, 1941155), (130, 1552924), (260, 776462), (520, 388231)]