20697150

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{4451}}^1$

素因数の和:4497

約数の個数: 48

約数和(自身を含む): 52996608

約数和(自身を除く): 32299458

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, 4451, 4650, 8902, 13353, 22255, 26706, 44510, 66765, 111275, 133530, 137981, 222550, 275962, 333825, 413943, 667650, 689905, 827886, 1379810, 2069715, 3449525, 4139430, 6899050, 10348575, 20697150]

約数ペア:

[(1, 20697150), (2, 10348575), (3, 6899050), (5, 4139430), (6, 3449525), (10, 2069715), (15, 1379810), (25, 827886), (30, 689905), (31, 667650), (50, 413943), (62, 333825), (75, 275962), (93, 222550), (150, 137981), (155, 133530), (186, 111275), (310, 66765), (465, 44510), (775, 26706), (930, 22255), (1550, 13353), (2325, 8902), (4451, 4650)]