28911636

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{379}}^1$

素因数の和:565

約数の個数: 72

約数和(自身を含む): 79395680

約数和(自身を除く): 50484044

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 163, 234, 326, 379, 468, 489, 652, 758, 978, 1137, 1467, 1516, 1956, 2119, 2274, 2934, 3411, 4238, 4548, 4927, 5868, 6357, 6822, 8476, 9854, 12714, 13644, 14781, 19071, 19708, 25428, 29562, 38142, 44343, 59124, 61777, 76284, 88686, 123554, 177372, 185331, 247108, 370662, 555993, 741324, 803101, 1111986, 1606202, 2223972, 2409303, 3212404, 4818606, 7227909, 9637212, 14455818, 28911636]

約数ペア:

[(1, 28911636), (2, 14455818), (3, 9637212), (4, 7227909), (6, 4818606), (9, 3212404), (12, 2409303), (13, 2223972), (18, 1606202), (26, 1111986), (36, 803101), (39, 741324), (52, 555993), (78, 370662), (117, 247108), (156, 185331), (163, 177372), (234, 123554), (326, 88686), (379, 76284), (468, 61777), (489, 59124), (652, 44343), (758, 38142), (978, 29562), (1137, 25428), (1467, 19708), (1516, 19071), (1956, 14781), (2119, 13644), (2274, 12714), (2934, 9854), (3411, 8476), (4238, 6822), (4548, 6357), (4927, 5868)]