161718340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{12979}}^1$

素因数の和:13084

約数の個数: 48

約数和(自身を含む): 392515200

約数和(自身を除く): 230796860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 12979, 25958, 51916, 64895, 90853, 129790, 181706, 259580, 363412, 454265, 908530, 1155131, 1817060, 2310262, 4620524, 5775655, 8085917, 11551310, 16171834, 23102620, 32343668, 40429585, 80859170, 161718340]

約数ペア:

[(1, 161718340), (2, 80859170), (4, 40429585), (5, 32343668), (7, 23102620), (10, 16171834), (14, 11551310), (20, 8085917), (28, 5775655), (35, 4620524), (70, 2310262), (89, 1817060), (140, 1155131), (178, 908530), (356, 454265), (445, 363412), (623, 259580), (890, 181706), (1246, 129790), (1780, 90853), (2492, 64895), (3115, 51916), (6230, 25958), (12460, 12979)]