1283800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{131}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 3498660

約数和(自身を除く): 2214860

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 131, 140, 175, 196, 200, 245, 262, 280, 350, 392, 490, 524, 655, 700, 917, 980, 1048, 1225, 1310, 1400, 1834, 1960, 2450, 2620, 3275, 3668, 4585, 4900, 5240, 6419, 6550, 7336, 9170, 9800, 12838, 13100, 18340, 22925, 25676, 26200, 32095, 36680, 45850, 51352, 64190, 91700, 128380, 160475, 183400, 256760, 320950, 641900, 1283800]

約数ペア:

[(1, 1283800), (2, 641900), (4, 320950), (5, 256760), (7, 183400), (8, 160475), (10, 128380), (14, 91700), (20, 64190), (25, 51352), (28, 45850), (35, 36680), (40, 32095), (49, 26200), (50, 25676), (56, 22925), (70, 18340), (98, 13100), (100, 12838), (131, 9800), (140, 9170), (175, 7336), (196, 6550), (200, 6419), (245, 5240), (262, 4900), (280, 4585), (350, 3668), (392, 3275), (490, 2620), (524, 2450), (655, 1960), (700, 1834), (917, 1400), (980, 1310), (1048, 1225)]