388520854520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{709}}^1\times {\mathrm{291481}}^1$

素因数の和:292248

約数の個数: 64

約数和(自身を含む): 894033590400

約数和(自身を除く): 505512735880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 709, 940, 1418, 1880, 2836, 3545, 5672, 7090, 14180, 28360, 33323, 66646, 133292, 166615, 266584, 291481, 333230, 582962, 666460, 1165924, 1332920, 1457405, 2331848, 2914810, 5829620, 11659240, 13699607, 27399214, 54798428, 68498035, 109596856, 136996070, 206660029, 273992140, 413320058, 547984280, 826640116, 1033300145, 1653280232, 2066600290, 4133200580, 8266401160, 9713021363, 19426042726, 38852085452, 48565106815, 77704170904, 97130213630, 194260427260, 388520854520]

約数ペア:

[(1, 388520854520), (2, 194260427260), (4, 97130213630), (5, 77704170904), (8, 48565106815), (10, 38852085452), (20, 19426042726), (40, 9713021363), (47, 8266401160), (94, 4133200580), (188, 2066600290), (235, 1653280232), (376, 1033300145), (470, 826640116), (709, 547984280), (940, 413320058), (1418, 273992140), (1880, 206660029), (2836, 136996070), (3545, 109596856), (5672, 68498035), (7090, 54798428), (14180, 27399214), (28360, 13699607), (33323, 11659240), (66646, 5829620), (133292, 2914810), (166615, 2331848), (266584, 1457405), (291481, 1332920), (333230, 1165924), (582962, 666460)]