1998260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 4741632

約数和(自身を除く): 2743372

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 124, 155, 220, 293, 310, 341, 586, 620, 682, 1172, 1364, 1465, 1705, 2930, 3223, 3410, 5860, 6446, 6820, 9083, 12892, 16115, 18166, 32230, 36332, 45415, 64460, 90830, 99913, 181660, 199826, 399652, 499565, 999130, 1998260]

約数ペア:

[(1, 1998260), (2, 999130), (4, 499565), (5, 399652), (10, 199826), (11, 181660), (20, 99913), (22, 90830), (31, 64460), (44, 45415), (55, 36332), (62, 32230), (110, 18166), (124, 16115), (155, 12892), (220, 9083), (293, 6820), (310, 6446), (341, 5860), (586, 3410), (620, 3223), (682, 2930), (1172, 1705), (1364, 1465)]