2021049225

素因数分解:

$3^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:358

約数の個数: 144

約数和(自身を含む): 4093474112

約数和(自身を除く): 2072424887

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 157, 163, 195, 225, 243, 325, 351, 405, 471, 489, 585, 675, 785, 815, 975, 1053, 1215, 1413, 1467, 1755, 2025, 2041, 2119, 2355, 2445, 2925, 3159, 3925, 4075, 4239, 4401, 5265, 6075, 6123, 6357, 7065, 7335, 8775, 10205, 10595, 11775, 12225, 12717, 13203, 15795, 18369, 19071, 21195, 22005, 25591, 26325, 30615, 31785, 35325, 36675, 38151, 39609, 51025, 52975, 55107, 57213, 63585, 66015, 76773, 78975, 91845, 95355, 105975, 110025, 127955, 153075, 158925, 165321, 171639, 190755, 198045, 230319, 275535, 286065, 317925, 330075, 332683, 383865, 459225, 476775, 495963, 514917, 639775, 690957, 826605, 858195, 953775, 990225, 998049, 1151595, 1377675, 1430325, 1663415, 1919325, 2072871, 2479815, 2574585, 2994147, 3454785, 4133025, 4290975, 4990245, 5757975, 6218613, 8317075, 8982441, 10364355, 12399075, 12872925, 14970735, 17273925, 24951225, 26947323, 31093065, 44912205, 51821775, 74853675, 80841969, 134736615, 155465325, 224561025, 404209845, 673683075, 2021049225]

約数ペア:

[(1, 2021049225), (3, 673683075), (5, 404209845), (9, 224561025), (13, 155465325), (15, 134736615), (25, 80841969), (27, 74853675), (39, 51821775), (45, 44912205), (65, 31093065), (75, 26947323), (81, 24951225), (117, 17273925), (135, 14970735), (157, 12872925), (163, 12399075), (195, 10364355), (225, 8982441), (243, 8317075), (325, 6218613), (351, 5757975), (405, 4990245), (471, 4290975), (489, 4133025), (585, 3454785), (675, 2994147), (785, 2574585), (815, 2479815), (975, 2072871), (1053, 1919325), (1215, 1663415), (1413, 1430325), (1467, 1377675), (1755, 1151595), (2025, 998049), (2041, 990225), (2119, 953775), (2355, 858195), (2445, 826605), (2925, 690957), (3159, 639775), (3925, 514917), (4075, 495963), (4239, 476775), (4401, 459225), (5265, 383865), (6075, 332683), (6123, 330075), (6357, 317925), (7065, 286065), (7335, 275535), (8775, 230319), (10205, 198045), (10595, 190755), (11775, 171639), (12225, 165321), (12717, 158925), (13203, 153075), (15795, 127955), (18369, 110025), (19071, 105975), (21195, 95355), (22005, 91845), (25591, 78975), (26325, 76773), (30615, 66015), (31785, 63585), (35325, 57213), (36675, 55107), (38151, 52975), (39609, 51025)]