20188500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:378

約数の個数: 96

約数和(自身を含む): 60348288

約数和(自身を除く): 40159788

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 125, 129, 150, 172, 215, 250, 258, 300, 313, 375, 430, 500, 516, 626, 645, 750, 860, 939, 1075, 1252, 1290, 1500, 1565, 1878, 2150, 2580, 3130, 3225, 3756, 4300, 4695, 5375, 6260, 6450, 7825, 9390, 10750, 12900, 13459, 15650, 16125, 18780, 21500, 23475, 26918, 31300, 32250, 39125, 40377, 46950, 53836, 64500, 67295, 78250, 80754, 93900, 117375, 134590, 156500, 161508, 201885, 234750, 269180, 336475, 403770, 469500, 672950, 807540, 1009425, 1345900, 1682375, 2018850, 3364750, 4037700, 5047125, 6729500, 10094250, 20188500]

約数ペア:

[(1, 20188500), (2, 10094250), (3, 6729500), (4, 5047125), (5, 4037700), (6, 3364750), (10, 2018850), (12, 1682375), (15, 1345900), (20, 1009425), (25, 807540), (30, 672950), (43, 469500), (50, 403770), (60, 336475), (75, 269180), (86, 234750), (100, 201885), (125, 161508), (129, 156500), (150, 134590), (172, 117375), (215, 93900), (250, 80754), (258, 78250), (300, 67295), (313, 64500), (375, 53836), (430, 46950), (500, 40377), (516, 39125), (626, 32250), (645, 31300), (750, 26918), (860, 23475), (939, 21500), (1075, 18780), (1252, 16125), (1290, 15650), (1500, 13459), (1565, 12900), (1878, 10750), (2150, 9390), (2580, 7825), (3130, 6450), (3225, 6260), (3756, 5375), (4300, 4695)]