780900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 2395680

約数和(自身を除く): 1614780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 57, 60, 75, 76, 95, 100, 114, 137, 150, 190, 228, 274, 285, 300, 380, 411, 475, 548, 570, 685, 822, 950, 1140, 1370, 1425, 1644, 1900, 2055, 2603, 2740, 2850, 3425, 4110, 5206, 5700, 6850, 7809, 8220, 10275, 10412, 13015, 13700, 15618, 20550, 26030, 31236, 39045, 41100, 52060, 65075, 78090, 130150, 156180, 195225, 260300, 390450, 780900]

約数ペア:

[(1, 780900), (2, 390450), (3, 260300), (4, 195225), (5, 156180), (6, 130150), (10, 78090), (12, 65075), (15, 52060), (19, 41100), (20, 39045), (25, 31236), (30, 26030), (38, 20550), (50, 15618), (57, 13700), (60, 13015), (75, 10412), (76, 10275), (95, 8220), (100, 7809), (114, 6850), (137, 5700), (150, 5206), (190, 4110), (228, 3425), (274, 2850), (285, 2740), (300, 2603), (380, 2055), (411, 1900), (475, 1644), (548, 1425), (570, 1370), (685, 1140), (822, 950)]