19454800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2861}}^1$

素因数の和:2896

約数の個数: 60

約数和(自身を含む): 49506876

約数和(自身を除く): 30052076

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 2861, 3400, 5722, 6800, 11444, 14305, 22888, 28610, 45776, 48637, 57220, 71525, 97274, 114440, 143050, 194548, 228880, 243185, 286100, 389096, 486370, 572200, 778192, 972740, 1144400, 1215925, 1945480, 2431850, 3890960, 4863700, 9727400, 19454800]

約数ペア:

[(1, 19454800), (2, 9727400), (4, 4863700), (5, 3890960), (8, 2431850), (10, 1945480), (16, 1215925), (17, 1144400), (20, 972740), (25, 778192), (34, 572200), (40, 486370), (50, 389096), (68, 286100), (80, 243185), (85, 228880), (100, 194548), (136, 143050), (170, 114440), (200, 97274), (272, 71525), (340, 57220), (400, 48637), (425, 45776), (680, 28610), (850, 22888), (1360, 14305), (1700, 11444), (2861, 6800), (3400, 5722)]