643490172

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{25943}}^1$

素因数の和:26019

約数の個数: 72

約数和(自身を含む): 1784843424

約数和(自身を除く): 1141353252

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 53, 78, 106, 117, 156, 159, 212, 234, 318, 468, 477, 636, 689, 954, 1378, 1908, 2067, 2756, 4134, 6201, 8268, 12402, 24804, 25943, 51886, 77829, 103772, 155658, 233487, 311316, 337259, 466974, 674518, 933948, 1011777, 1349036, 1374979, 2023554, 2749958, 3035331, 4047108, 4124937, 5499916, 6070662, 8249874, 12141324, 12374811, 16499748, 17874727, 24749622, 35749454, 49499244, 53624181, 71498908, 107248362, 160872543, 214496724, 321745086, 643490172]

約数ペア:

[(1, 643490172), (2, 321745086), (3, 214496724), (4, 160872543), (6, 107248362), (9, 71498908), (12, 53624181), (13, 49499244), (18, 35749454), (26, 24749622), (36, 17874727), (39, 16499748), (52, 12374811), (53, 12141324), (78, 8249874), (106, 6070662), (117, 5499916), (156, 4124937), (159, 4047108), (212, 3035331), (234, 2749958), (318, 2023554), (468, 1374979), (477, 1349036), (636, 1011777), (689, 933948), (954, 674518), (1378, 466974), (1908, 337259), (2067, 311316), (2756, 233487), (4134, 155658), (6201, 103772), (8268, 77829), (12402, 51886), (24804, 25943)]