20041508900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{143873}}^1$

素因数の和:144093

約数の個数: 72

約数和(自身を含む): 49953052800

約数和(自身を除く): 29911543900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 199, 350, 398, 700, 796, 995, 1393, 1990, 2786, 3980, 4975, 5572, 6965, 9950, 13930, 19900, 27860, 34825, 69650, 139300, 143873, 287746, 575492, 719365, 1007111, 1438730, 2014222, 2877460, 3596825, 4028444, 5035555, 7193650, 10071110, 14387300, 20142220, 25177775, 28630727, 50355550, 57261454, 100711100, 114522908, 143153635, 200415089, 286307270, 400830178, 572614540, 715768175, 801660356, 1002075445, 1431536350, 2004150890, 2863072700, 4008301780, 5010377225, 10020754450, 20041508900]

約数ペア:

[(1, 20041508900), (2, 10020754450), (4, 5010377225), (5, 4008301780), (7, 2863072700), (10, 2004150890), (14, 1431536350), (20, 1002075445), (25, 801660356), (28, 715768175), (35, 572614540), (50, 400830178), (70, 286307270), (100, 200415089), (140, 143153635), (175, 114522908), (199, 100711100), (350, 57261454), (398, 50355550), (700, 28630727), (796, 25177775), (995, 20142220), (1393, 14387300), (1990, 10071110), (2786, 7193650), (3980, 5035555), (4975, 4028444), (5572, 3596825), (6965, 2877460), (9950, 2014222), (13930, 1438730), (19900, 1007111), (27860, 719365), (34825, 575492), (69650, 287746), (139300, 143873)]