25180700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{457}}^1$

素因数の和:519

約数の個数: 72

約数和(自身を含む): 59631600

約数和(自身を除く): 34450900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 29, 38, 50, 58, 76, 95, 100, 116, 145, 190, 290, 380, 457, 475, 551, 580, 725, 914, 950, 1102, 1450, 1828, 1900, 2204, 2285, 2755, 2900, 4570, 5510, 8683, 9140, 11020, 11425, 13253, 13775, 17366, 22850, 26506, 27550, 34732, 43415, 45700, 53012, 55100, 66265, 86830, 132530, 173660, 217075, 251807, 265060, 331325, 434150, 503614, 662650, 868300, 1007228, 1259035, 1325300, 2518070, 5036140, 6295175, 12590350, 25180700]

約数ペア:

[(1, 25180700), (2, 12590350), (4, 6295175), (5, 5036140), (10, 2518070), (19, 1325300), (20, 1259035), (25, 1007228), (29, 868300), (38, 662650), (50, 503614), (58, 434150), (76, 331325), (95, 265060), (100, 251807), (116, 217075), (145, 173660), (190, 132530), (290, 86830), (380, 66265), (457, 55100), (475, 53012), (551, 45700), (580, 43415), (725, 34732), (914, 27550), (950, 26506), (1102, 22850), (1450, 17366), (1828, 13775), (1900, 13253), (2204, 11425), (2285, 11020), (2755, 9140), (2900, 8683), (4570, 5510)]