209965275

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3121}}^1$

素因数の和:3173

約数の個数: 72

約数和(自身を含む): 422743776

約数和(自身を除く): 212778501

約数列:

[1, 3, 5, 9, 13, 15, 23, 25, 39, 45, 65, 69, 75, 115, 117, 195, 207, 225, 299, 325, 345, 575, 585, 897, 975, 1035, 1495, 1725, 2691, 2925, 3121, 4485, 5175, 7475, 9363, 13455, 15605, 22425, 28089, 40573, 46815, 67275, 71783, 78025, 121719, 140445, 202865, 215349, 234075, 358915, 365157, 608595, 646047, 702225, 933179, 1014325, 1076745, 1794575, 1825785, 2799537, 3042975, 3230235, 4665895, 5383725, 8398611, 9128925, 13997685, 16151175, 23329475, 41993055, 69988425, 209965275]

約数ペア:

[(1, 209965275), (3, 69988425), (5, 41993055), (9, 23329475), (13, 16151175), (15, 13997685), (23, 9128925), (25, 8398611), (39, 5383725), (45, 4665895), (65, 3230235), (69, 3042975), (75, 2799537), (115, 1825785), (117, 1794575), (195, 1076745), (207, 1014325), (225, 933179), (299, 702225), (325, 646047), (345, 608595), (575, 365157), (585, 358915), (897, 234075), (975, 215349), (1035, 202865), (1495, 140445), (1725, 121719), (2691, 78025), (2925, 71783), (3121, 67275), (4485, 46815), (5175, 40573), (7475, 28089), (9363, 22425), (13455, 15605)]