490380500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1259}}^1$

素因数の和:1338

約数の個数: 96

約数和(自身を含む): 1155772800

約数和(自身を除く): 665392300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 50, 76, 82, 95, 100, 125, 164, 190, 205, 250, 380, 410, 475, 500, 779, 820, 950, 1025, 1259, 1558, 1900, 2050, 2375, 2518, 3116, 3895, 4100, 4750, 5036, 5125, 6295, 7790, 9500, 10250, 12590, 15580, 19475, 20500, 23921, 25180, 31475, 38950, 47842, 51619, 62950, 77900, 95684, 97375, 103238, 119605, 125900, 157375, 194750, 206476, 239210, 258095, 314750, 389500, 478420, 516190, 598025, 629500, 980761, 1032380, 1196050, 1290475, 1961522, 2392100, 2580950, 2990125, 3923044, 4903805, 5161900, 5980250, 6452375, 9807610, 11960500, 12904750, 19615220, 24519025, 25809500, 49038050, 98076100, 122595125, 245190250, 490380500]

約数ペア:

[(1, 490380500), (2, 245190250), (4, 122595125), (5, 98076100), (10, 49038050), (19, 25809500), (20, 24519025), (25, 19615220), (38, 12904750), (41, 11960500), (50, 9807610), (76, 6452375), (82, 5980250), (95, 5161900), (100, 4903805), (125, 3923044), (164, 2990125), (190, 2580950), (205, 2392100), (250, 1961522), (380, 1290475), (410, 1196050), (475, 1032380), (500, 980761), (779, 629500), (820, 598025), (950, 516190), (1025, 478420), (1259, 389500), (1558, 314750), (1900, 258095), (2050, 239210), (2375, 206476), (2518, 194750), (3116, 157375), (3895, 125900), (4100, 119605), (4750, 103238), (5036, 97375), (5125, 95684), (6295, 77900), (7790, 62950), (9500, 51619), (10250, 47842), (12590, 38950), (15580, 31475), (19475, 25180), (20500, 23921)]