28681036389

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{1319}}^1$

素因数の和:1620

約数の個数: 80

約数和(自身を含む): 45999360000

約数和(自身を除く): 17318323611

約数列:

[1, 3, 9, 19, 27, 57, 71, 81, 171, 199, 213, 513, 597, 639, 1319, 1349, 1539, 1791, 1917, 3781, 3957, 4047, 5373, 5751, 11343, 11871, 12141, 14129, 16119, 25061, 34029, 35613, 36423, 42387, 75183, 93649, 102087, 106839, 109269, 127161, 225549, 262481, 268451, 280947, 306261, 381483, 676647, 787443, 805353, 842841, 1144449, 1779331, 2029941, 2362329, 2416059, 2528523, 4987139, 5337993, 7086987, 7248177, 7585569, 14961417, 16013979, 18636151, 21260961, 21744531, 44884251, 48041937, 55908453, 134652753, 144125811, 167725359, 354086869, 403958259, 503176077, 1062260607, 1509528231, 3186781821, 9560345463, 28681036389]

約数ペア:

[(1, 28681036389), (3, 9560345463), (9, 3186781821), (19, 1509528231), (27, 1062260607), (57, 503176077), (71, 403958259), (81, 354086869), (171, 167725359), (199, 144125811), (213, 134652753), (513, 55908453), (597, 48041937), (639, 44884251), (1319, 21744531), (1349, 21260961), (1539, 18636151), (1791, 16013979), (1917, 14961417), (3781, 7585569), (3957, 7248177), (4047, 7086987), (5373, 5337993), (5751, 4987139), (11343, 2528523), (11871, 2416059), (12141, 2362329), (14129, 2029941), (16119, 1779331), (25061, 1144449), (34029, 842841), (35613, 805353), (36423, 787443), (42387, 676647), (75183, 381483), (93649, 306261), (102087, 280947), (106839, 268451), (109269, 262481), (127161, 225549)]