1966580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1277}}^1$

素因数の和:1304

約数の個数: 48

約数和(自身を含む): 5152896

約数和(自身を除く): 3186316

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1277, 1540, 2554, 5108, 6385, 8939, 12770, 14047, 17878, 25540, 28094, 35756, 44695, 56188, 70235, 89390, 98329, 140470, 178780, 196658, 280940, 393316, 491645, 983290, 1966580]

約数ペア:

[(1, 1966580), (2, 983290), (4, 491645), (5, 393316), (7, 280940), (10, 196658), (11, 178780), (14, 140470), (20, 98329), (22, 89390), (28, 70235), (35, 56188), (44, 44695), (55, 35756), (70, 28094), (77, 25540), (110, 17878), (140, 14047), (154, 12770), (220, 8939), (308, 6385), (385, 5108), (770, 2554), (1277, 1540)]