254383520

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51287}}^1$

素因数の和:51333

約数の個数: 48

約数和(自身を含む): 620379648

約数和(自身を除く): 365996128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 51287, 102574, 205148, 256435, 410296, 512870, 820592, 1025740, 1589897, 1641184, 2051480, 3179794, 4102960, 6359588, 7949485, 8205920, 12719176, 15898970, 25438352, 31797940, 50876704, 63595880, 127191760, 254383520]

約数ペア:

[(1, 254383520), (2, 127191760), (4, 63595880), (5, 50876704), (8, 31797940), (10, 25438352), (16, 15898970), (20, 12719176), (31, 8205920), (32, 7949485), (40, 6359588), (62, 4102960), (80, 3179794), (124, 2051480), (155, 1641184), (160, 1589897), (248, 1025740), (310, 820592), (496, 512870), (620, 410296), (992, 256435), (1240, 205148), (2480, 102574), (4960, 51287)]