210507050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{337}}^1$

素因数の和:424

約数の個数: 72

約数和(自身を含む): 436995468

約数和(自身を除く): 226488418

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 337, 403, 650, 674, 775, 806, 961, 1550, 1685, 1922, 2015, 3370, 4030, 4381, 4805, 8425, 8762, 9610, 10075, 10447, 12493, 16850, 20150, 20894, 21905, 24025, 24986, 43810, 48050, 52235, 62465, 104470, 109525, 124930, 135811, 219050, 261175, 271622, 312325, 323857, 522350, 624650, 647714, 679055, 1358110, 1619285, 3238570, 3395275, 4210141, 6790550, 8096425, 8420282, 16192850, 21050705, 42101410, 105253525, 210507050]

約数ペア:

[(1, 210507050), (2, 105253525), (5, 42101410), (10, 21050705), (13, 16192850), (25, 8420282), (26, 8096425), (31, 6790550), (50, 4210141), (62, 3395275), (65, 3238570), (130, 1619285), (155, 1358110), (310, 679055), (325, 647714), (337, 624650), (403, 522350), (650, 323857), (674, 312325), (775, 271622), (806, 261175), (961, 219050), (1550, 135811), (1685, 124930), (1922, 109525), (2015, 104470), (3370, 62465), (4030, 52235), (4381, 48050), (4805, 43810), (8425, 24986), (8762, 24025), (9610, 21905), (10075, 20894), (10447, 20150), (12493, 16850)]