20650650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4441}}^1$

素因数の和:4487

約数の個数: 48

約数和(自身を含む): 52877568

約数和(自身を除く): 32226918

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 150, 155, 186, 310, 465, 775, 930, 1550, 2325, 4441, 4650, 8882, 13323, 22205, 26646, 44410, 66615, 111025, 133230, 137671, 222050, 275342, 333075, 413013, 666150, 688355, 826026, 1376710, 2065065, 3441775, 4130130, 6883550, 10325325, 20650650]

約数ペア:

[(1, 20650650), (2, 10325325), (3, 6883550), (5, 4130130), (6, 3441775), (10, 2065065), (15, 1376710), (25, 826026), (30, 688355), (31, 666150), (50, 413013), (62, 333075), (75, 275342), (93, 222050), (150, 137671), (155, 133230), (186, 111025), (310, 66615), (465, 44410), (775, 26646), (930, 22205), (1550, 13323), (2325, 8882), (4441, 4650)]