859845020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{7919}}^1$

素因数の和:8078

約数の個数: 48

約数和(自身を含む): 1856131200

約数和(自身を除く): 996286180

約数列:

[1, 2, 4, 5, 10, 20, 61, 89, 122, 178, 244, 305, 356, 445, 610, 890, 1220, 1780, 5429, 7919, 10858, 15838, 21716, 27145, 31676, 39595, 54290, 79190, 108580, 158380, 483059, 704791, 966118, 1409582, 1932236, 2415295, 2819164, 3523955, 4830590, 7047910, 9661180, 14095820, 42992251, 85984502, 171969004, 214961255, 429922510, 859845020]

約数ペア:

[(1, 859845020), (2, 429922510), (4, 214961255), (5, 171969004), (10, 85984502), (20, 42992251), (61, 14095820), (89, 9661180), (122, 7047910), (178, 4830590), (244, 3523955), (305, 2819164), (356, 2415295), (445, 1932236), (610, 1409582), (890, 966118), (1220, 704791), (1780, 483059), (5429, 158380), (7919, 108580), (10858, 79190), (15838, 54290), (21716, 39595), (27145, 31676)]