291220820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{42701}}^1$

素因数の和:42752

約数の個数: 48

約数和(自身を含む): 688697856

約数和(自身を除く): 397477036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 310, 341, 620, 682, 1364, 1705, 3410, 6820, 42701, 85402, 170804, 213505, 427010, 469711, 854020, 939422, 1323731, 1878844, 2348555, 2647462, 4697110, 5294924, 6618655, 9394220, 13237310, 14561041, 26474620, 29122082, 58244164, 72805205, 145610410, 291220820]

約数ペア:

[(1, 291220820), (2, 145610410), (4, 72805205), (5, 58244164), (10, 29122082), (11, 26474620), (20, 14561041), (22, 13237310), (31, 9394220), (44, 6618655), (55, 5294924), (62, 4697110), (110, 2647462), (124, 2348555), (155, 1878844), (220, 1323731), (310, 939422), (341, 854020), (620, 469711), (682, 427010), (1364, 213505), (1705, 170804), (3410, 85402), (6820, 42701)]