201215650

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{439}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 383011200

約数和(自身を除く): 181795550

約数列:

[1, 2, 5, 10, 25, 50, 89, 103, 178, 206, 439, 445, 515, 878, 890, 1030, 2195, 2225, 2575, 4390, 4450, 5150, 9167, 10975, 18334, 21950, 39071, 45217, 45835, 78142, 90434, 91670, 195355, 226085, 229175, 390710, 452170, 458350, 976775, 1130425, 1953550, 2260850, 4024313, 8048626, 20121565, 40243130, 100607825, 201215650]

約数ペア:

[(1, 201215650), (2, 100607825), (5, 40243130), (10, 20121565), (25, 8048626), (50, 4024313), (89, 2260850), (103, 1953550), (178, 1130425), (206, 976775), (439, 458350), (445, 452170), (515, 390710), (878, 229175), (890, 226085), (1030, 195355), (2195, 91670), (2225, 90434), (2575, 78142), (4390, 45835), (4450, 45217), (5150, 39071), (9167, 21950), (10975, 18334)]