291249868

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{1009}}^1$

素因数の和:1107

約数の個数: 72

約数和(自身を含む): 641729760

約数和(自身を除く): 350479892

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 61, 91, 122, 169, 182, 244, 338, 364, 427, 676, 793, 854, 1009, 1183, 1586, 1708, 2018, 2366, 3172, 4036, 4732, 5551, 7063, 10309, 11102, 13117, 14126, 20618, 22204, 26234, 28252, 41236, 52468, 61549, 72163, 91819, 123098, 144326, 170521, 183638, 246196, 288652, 341042, 367276, 430843, 682084, 800137, 861686, 1193647, 1600274, 1723372, 2387294, 3200548, 4774588, 5600959, 10401781, 11201918, 20803562, 22403836, 41607124, 72812467, 145624934, 291249868]

約数ペア:

[(1, 291249868), (2, 145624934), (4, 72812467), (7, 41607124), (13, 22403836), (14, 20803562), (26, 11201918), (28, 10401781), (52, 5600959), (61, 4774588), (91, 3200548), (122, 2387294), (169, 1723372), (182, 1600274), (244, 1193647), (338, 861686), (364, 800137), (427, 682084), (676, 430843), (793, 367276), (854, 341042), (1009, 288652), (1183, 246196), (1586, 183638), (1708, 170521), (2018, 144326), (2366, 123098), (3172, 91819), (4036, 72163), (4732, 61549), (5551, 52468), (7063, 41236), (10309, 28252), (11102, 26234), (13117, 22204), (14126, 20618)]