28342620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1559}}^1$

素因数の和:1675

約数の個数: 72

約数和(自身を含む): 86879520

約数和(自身を除く): 58536900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1559, 1818, 2020, 3030, 3118, 3636, 4545, 4677, 6060, 6236, 7795, 9090, 9354, 14031, 15590, 18180, 18708, 23385, 28062, 31180, 46770, 56124, 70155, 93540, 140310, 157459, 280620, 314918, 472377, 629836, 787295, 944754, 1417131, 1574590, 1889508, 2361885, 2834262, 3149180, 4723770, 5668524, 7085655, 9447540, 14171310, 28342620]

約数ペア:

[(1, 28342620), (2, 14171310), (3, 9447540), (4, 7085655), (5, 5668524), (6, 4723770), (9, 3149180), (10, 2834262), (12, 2361885), (15, 1889508), (18, 1574590), (20, 1417131), (30, 944754), (36, 787295), (45, 629836), (60, 472377), (90, 314918), (101, 280620), (180, 157459), (202, 140310), (303, 93540), (404, 70155), (505, 56124), (606, 46770), (909, 31180), (1010, 28062), (1212, 23385), (1515, 18708), (1559, 18180), (1818, 15590), (2020, 14031), (3030, 9354), (3118, 9090), (3636, 7795), (4545, 6236), (4677, 6060)]