201645260

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{839}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 433097280

約数和(自身を除く): 231452020

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 197, 244, 305, 394, 610, 788, 839, 985, 1220, 1678, 1970, 3356, 3940, 4195, 8390, 12017, 16780, 24034, 48068, 51179, 60085, 102358, 120170, 165283, 204716, 240340, 255895, 330566, 511790, 661132, 826415, 1023580, 1652830, 3305660, 10082263, 20164526, 40329052, 50411315, 100822630, 201645260]

約数ペア:

[(1, 201645260), (2, 100822630), (4, 50411315), (5, 40329052), (10, 20164526), (20, 10082263), (61, 3305660), (122, 1652830), (197, 1023580), (244, 826415), (305, 661132), (394, 511790), (610, 330566), (788, 255895), (839, 240340), (985, 204716), (1220, 165283), (1678, 120170), (1970, 102358), (3356, 60085), (3940, 51179), (4195, 48068), (8390, 24034), (12017, 16780)]