18946305

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 40005504

約数和(自身を除く): 21059199

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 41, 45, 63, 81, 105, 123, 135, 163, 189, 205, 287, 315, 369, 405, 489, 567, 615, 815, 861, 945, 1107, 1141, 1435, 1467, 1845, 2445, 2583, 2835, 3321, 3423, 4305, 4401, 5535, 5705, 6683, 7335, 7749, 10269, 12915, 13203, 16605, 17115, 20049, 22005, 23247, 30807, 33415, 38745, 46781, 51345, 60147, 66015, 92421, 100245, 116235, 140343, 154035, 180441, 233905, 300735, 421029, 462105, 541323, 701715, 902205, 1263087, 2105145, 2706615, 3789261, 6315435, 18946305]

約数ペア:

[(1, 18946305), (3, 6315435), (5, 3789261), (7, 2706615), (9, 2105145), (15, 1263087), (21, 902205), (27, 701715), (35, 541323), (41, 462105), (45, 421029), (63, 300735), (81, 233905), (105, 180441), (123, 154035), (135, 140343), (163, 116235), (189, 100245), (205, 92421), (287, 66015), (315, 60147), (369, 51345), (405, 46781), (489, 38745), (567, 33415), (615, 30807), (815, 23247), (861, 22005), (945, 20049), (1107, 17115), (1141, 16605), (1435, 13203), (1467, 12915), (1845, 10269), (2445, 7749), (2583, 7335), (2835, 6683), (3321, 5705), (3423, 5535), (4305, 4401)]