16964740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{919}}^1$

素因数の和:1012

約数の個数: 48

約数和(自身を含む): 38949120

約数和(自身を除く): 21984380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 710, 919, 923, 1420, 1838, 1846, 3676, 3692, 4595, 4615, 9190, 9230, 11947, 18380, 18460, 23894, 47788, 59735, 65249, 119470, 130498, 238940, 260996, 326245, 652490, 848237, 1304980, 1696474, 3392948, 4241185, 8482370, 16964740]

約数ペア:

[(1, 16964740), (2, 8482370), (4, 4241185), (5, 3392948), (10, 1696474), (13, 1304980), (20, 848237), (26, 652490), (52, 326245), (65, 260996), (71, 238940), (130, 130498), (142, 119470), (260, 65249), (284, 59735), (355, 47788), (710, 23894), (919, 18460), (923, 18380), (1420, 11947), (1838, 9230), (1846, 9190), (3676, 4615), (3692, 4595)]