209150800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1$

素因数の和:317

約数の個数: 120

約数和(自身を含む): 526966272

約数和(自身を除く): 317815472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 101, 124, 155, 167, 200, 202, 248, 310, 334, 400, 404, 496, 505, 620, 668, 775, 808, 835, 1010, 1240, 1336, 1550, 1616, 1670, 2020, 2480, 2525, 2672, 3100, 3131, 3340, 4040, 4175, 5050, 5177, 6200, 6262, 6680, 8080, 8350, 10100, 10354, 12400, 12524, 13360, 15655, 16700, 16867, 20200, 20708, 25048, 25885, 31310, 33400, 33734, 40400, 41416, 50096, 51770, 62620, 66800, 67468, 78275, 82832, 84335, 103540, 125240, 129425, 134936, 156550, 168670, 207080, 250480, 258850, 269872, 313100, 337340, 414160, 421675, 517700, 522877, 626200, 674680, 843350, 1035400, 1045754, 1252400, 1349360, 1686700, 2070800, 2091508, 2614385, 3373400, 4183016, 5228770, 6746800, 8366032, 10457540, 13071925, 20915080, 26143850, 41830160, 52287700, 104575400, 209150800]

約数ペア:

[(1, 209150800), (2, 104575400), (4, 52287700), (5, 41830160), (8, 26143850), (10, 20915080), (16, 13071925), (20, 10457540), (25, 8366032), (31, 6746800), (40, 5228770), (50, 4183016), (62, 3373400), (80, 2614385), (100, 2091508), (101, 2070800), (124, 1686700), (155, 1349360), (167, 1252400), (200, 1045754), (202, 1035400), (248, 843350), (310, 674680), (334, 626200), (400, 522877), (404, 517700), (496, 421675), (505, 414160), (620, 337340), (668, 313100), (775, 269872), (808, 258850), (835, 250480), (1010, 207080), (1240, 168670), (1336, 156550), (1550, 134936), (1616, 129425), (1670, 125240), (2020, 103540), (2480, 84335), (2525, 82832), (2672, 78275), (3100, 67468), (3131, 66800), (3340, 62620), (4040, 51770), (4175, 50096), (5050, 41416), (5177, 40400), (6200, 33734), (6262, 33400), (6680, 31310), (8080, 25885), (8350, 25048), (10100, 20708), (10354, 20200), (12400, 16867), (12524, 16700), (13360, 15655)]