71831900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1153}}^1$

素因数の和:1263

約数の個数: 72

約数和(自身を含む): 180300960

約数和(自身を除く): 108469060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 89, 100, 140, 175, 178, 350, 356, 445, 623, 700, 890, 1153, 1246, 1780, 2225, 2306, 2492, 3115, 4450, 4612, 5765, 6230, 8071, 8900, 11530, 12460, 15575, 16142, 23060, 28825, 31150, 32284, 40355, 57650, 62300, 80710, 102617, 115300, 161420, 201775, 205234, 403550, 410468, 513085, 718319, 807100, 1026170, 1436638, 2052340, 2565425, 2873276, 3591595, 5130850, 7183190, 10261700, 14366380, 17957975, 35915950, 71831900]

約数ペア:

[(1, 71831900), (2, 35915950), (4, 17957975), (5, 14366380), (7, 10261700), (10, 7183190), (14, 5130850), (20, 3591595), (25, 2873276), (28, 2565425), (35, 2052340), (50, 1436638), (70, 1026170), (89, 807100), (100, 718319), (140, 513085), (175, 410468), (178, 403550), (350, 205234), (356, 201775), (445, 161420), (623, 115300), (700, 102617), (890, 80710), (1153, 62300), (1246, 57650), (1780, 40355), (2225, 32284), (2306, 31150), (2492, 28825), (3115, 23060), (4450, 16142), (4612, 15575), (5765, 12460), (6230, 11530), (8071, 8900)]