1994171900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{14461}}^1$

素因数の和:14679

約数の個数: 72

約数和(自身を含む): 4970994336

約数和(自身を除く): 2976822436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 197, 350, 394, 700, 788, 985, 1379, 1970, 2758, 3940, 4925, 5516, 6895, 9850, 13790, 14461, 19700, 27580, 28922, 34475, 57844, 68950, 72305, 101227, 137900, 144610, 202454, 289220, 361525, 404908, 506135, 723050, 1012270, 1446100, 2024540, 2530675, 2848817, 5061350, 5697634, 10122700, 11395268, 14244085, 19941719, 28488170, 39883438, 56976340, 71220425, 79766876, 99708595, 142440850, 199417190, 284881700, 398834380, 498542975, 997085950, 1994171900]

約数ペア:

[(1, 1994171900), (2, 997085950), (4, 498542975), (5, 398834380), (7, 284881700), (10, 199417190), (14, 142440850), (20, 99708595), (25, 79766876), (28, 71220425), (35, 56976340), (50, 39883438), (70, 28488170), (100, 19941719), (140, 14244085), (175, 11395268), (197, 10122700), (350, 5697634), (394, 5061350), (700, 2848817), (788, 2530675), (985, 2024540), (1379, 1446100), (1970, 1012270), (2758, 723050), (3940, 506135), (4925, 404908), (5516, 361525), (6895, 289220), (9850, 202454), (13790, 144610), (14461, 137900), (19700, 101227), (27580, 72305), (28922, 68950), (34475, 57844)]