204461480

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{727}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 471744000

約数和(自身を除く): 267282520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 89, 158, 178, 316, 356, 395, 445, 632, 712, 727, 790, 890, 1454, 1580, 1780, 2908, 3160, 3560, 3635, 5816, 7031, 7270, 14062, 14540, 28124, 29080, 35155, 56248, 57433, 64703, 70310, 114866, 129406, 140620, 229732, 258812, 281240, 287165, 323515, 459464, 517624, 574330, 647030, 1148660, 1294060, 2297320, 2588120, 5111537, 10223074, 20446148, 25557685, 40892296, 51115370, 102230740, 204461480]

約数ペア:

[(1, 204461480), (2, 102230740), (4, 51115370), (5, 40892296), (8, 25557685), (10, 20446148), (20, 10223074), (40, 5111537), (79, 2588120), (89, 2297320), (158, 1294060), (178, 1148660), (316, 647030), (356, 574330), (395, 517624), (445, 459464), (632, 323515), (712, 287165), (727, 281240), (790, 258812), (890, 229732), (1454, 140620), (1580, 129406), (1780, 114866), (2908, 70310), (3160, 64703), (3560, 57433), (3635, 56248), (5816, 35155), (7031, 29080), (7270, 28124), (14062, 14540)]