813400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{83}}^1$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 2226420

約数和(自身を除く): 1413020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 83, 98, 100, 140, 166, 175, 196, 200, 245, 280, 332, 350, 392, 415, 490, 581, 664, 700, 830, 980, 1162, 1225, 1400, 1660, 1960, 2075, 2324, 2450, 2905, 3320, 4067, 4150, 4648, 4900, 5810, 8134, 8300, 9800, 11620, 14525, 16268, 16600, 20335, 23240, 29050, 32536, 40670, 58100, 81340, 101675, 116200, 162680, 203350, 406700, 813400]

約数ペア:

[(1, 813400), (2, 406700), (4, 203350), (5, 162680), (7, 116200), (8, 101675), (10, 81340), (14, 58100), (20, 40670), (25, 32536), (28, 29050), (35, 23240), (40, 20335), (49, 16600), (50, 16268), (56, 14525), (70, 11620), (83, 9800), (98, 8300), (100, 8134), (140, 5810), (166, 4900), (175, 4648), (196, 4150), (200, 4067), (245, 3320), (280, 2905), (332, 2450), (350, 2324), (392, 2075), (415, 1960), (490, 1660), (581, 1400), (664, 1225), (700, 1162), (830, 980)]