17826940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1091}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 40360320

約数和(自身を除く): 22533380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1091, 1634, 2182, 3268, 4085, 4364, 5455, 8170, 10910, 16340, 20729, 21820, 41458, 46913, 82916, 93826, 103645, 187652, 207290, 234565, 414580, 469130, 891347, 938260, 1782694, 3565388, 4456735, 8913470, 17826940]

約数ペア:

[(1, 17826940), (2, 8913470), (4, 4456735), (5, 3565388), (10, 1782694), (19, 938260), (20, 891347), (38, 469130), (43, 414580), (76, 234565), (86, 207290), (95, 187652), (172, 103645), (190, 93826), (215, 82916), (380, 46913), (430, 41458), (817, 21820), (860, 20729), (1091, 16340), (1634, 10910), (2182, 8170), (3268, 5455), (4085, 4364)]