71057500

素因数分解:

$2^2\times 5^4\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:728

約数の個数: 60

約数和(自身を含む): 159242776

約数和(自身を除く): 88185276

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 625, 661, 860, 1075, 1250, 1322, 2150, 2500, 2644, 3305, 4300, 5375, 6610, 10750, 13220, 16525, 21500, 26875, 28423, 33050, 53750, 56846, 66100, 82625, 107500, 113692, 142115, 165250, 284230, 330500, 413125, 568460, 710575, 826250, 1421150, 1652500, 2842300, 3552875, 7105750, 14211500, 17764375, 35528750, 71057500]

約数ペア:

[(1, 71057500), (2, 35528750), (4, 17764375), (5, 14211500), (10, 7105750), (20, 3552875), (25, 2842300), (43, 1652500), (50, 1421150), (86, 826250), (100, 710575), (125, 568460), (172, 413125), (215, 330500), (250, 284230), (430, 165250), (500, 142115), (625, 113692), (661, 107500), (860, 82625), (1075, 66100), (1250, 56846), (1322, 53750), (2150, 33050), (2500, 28423), (2644, 26875), (3305, 21500), (4300, 16525), (5375, 13220), (6610, 10750)]