218329900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{70429}}^1$

素因数の和:70474

約数の個数: 36

約数和(自身を含む): 489065920

約数和(自身を除く): 270736020

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 70429, 140858, 281716, 352145, 704290, 1408580, 1760725, 2183299, 3521450, 4366598, 7042900, 8733196, 10916495, 21832990, 43665980, 54582475, 109164950, 218329900]

約数ペア:

[(1, 218329900), (2, 109164950), (4, 54582475), (5, 43665980), (10, 21832990), (20, 10916495), (25, 8733196), (31, 7042900), (50, 4366598), (62, 3521450), (100, 2183299), (124, 1760725), (155, 1408580), (310, 704290), (620, 352145), (775, 281716), (1550, 140858), (3100, 70429)]