1661868

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 4678128

約数和(自身を除く): 3016260

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 53, 67, 78, 106, 117, 134, 156, 159, 201, 212, 234, 268, 318, 402, 468, 477, 603, 636, 689, 804, 871, 954, 1206, 1378, 1742, 1908, 2067, 2412, 2613, 2756, 3484, 3551, 4134, 5226, 6201, 7102, 7839, 8268, 10452, 10653, 12402, 14204, 15678, 21306, 24804, 31356, 31959, 42612, 46163, 63918, 92326, 127836, 138489, 184652, 276978, 415467, 553956, 830934, 1661868]

約数ペア:

[(1, 1661868), (2, 830934), (3, 553956), (4, 415467), (6, 276978), (9, 184652), (12, 138489), (13, 127836), (18, 92326), (26, 63918), (36, 46163), (39, 42612), (52, 31959), (53, 31356), (67, 24804), (78, 21306), (106, 15678), (117, 14204), (134, 12402), (156, 10653), (159, 10452), (201, 8268), (212, 7839), (234, 7102), (268, 6201), (318, 5226), (402, 4134), (468, 3551), (477, 3484), (603, 2756), (636, 2613), (689, 2412), (804, 2067), (871, 1908), (954, 1742), (1206, 1378)]