17819620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9791}}^1$

素因数の和:9820

約数の個数: 48

約数和(自身を含む): 46061568

約数和(自身を除く): 28241948

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 9791, 19582, 39164, 48955, 68537, 97910, 127283, 137074, 195820, 254566, 274148, 342685, 509132, 636415, 685370, 890981, 1272830, 1370740, 1781962, 2545660, 3563924, 4454905, 8909810, 17819620]

約数ペア:

[(1, 17819620), (2, 8909810), (4, 4454905), (5, 3563924), (7, 2545660), (10, 1781962), (13, 1370740), (14, 1272830), (20, 890981), (26, 685370), (28, 636415), (35, 509132), (52, 342685), (65, 274148), (70, 254566), (91, 195820), (130, 137074), (140, 127283), (182, 97910), (260, 68537), (364, 48955), (455, 39164), (910, 19582), (1820, 9791)]