205770280

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{61979}}^1$

素因数の和:62073

約数の個数: 32

約数和(自身を含む): 468568800

約数和(自身を除く): 262798520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 61979, 123958, 247916, 309895, 495832, 619790, 1239580, 2479160, 5144257, 10288514, 20577028, 25721285, 41154056, 51442570, 102885140, 205770280]

約数ペア:

[(1, 205770280), (2, 102885140), (4, 51442570), (5, 41154056), (8, 25721285), (10, 20577028), (20, 10288514), (40, 5144257), (83, 2479160), (166, 1239580), (332, 619790), (415, 495832), (664, 309895), (830, 247916), (1660, 123958), (3320, 61979)]