201998800

素因数分解:

$2^4\times 5^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:281

約数の個数: 120

約数和(自身を含む): 506139480

約数和(自身を除く): 304140680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 41, 50, 80, 82, 100, 109, 113, 164, 200, 205, 218, 226, 328, 400, 410, 436, 452, 545, 565, 656, 820, 872, 904, 1025, 1090, 1130, 1640, 1744, 1808, 2050, 2180, 2260, 2725, 2825, 3280, 4100, 4360, 4469, 4520, 4633, 5450, 5650, 8200, 8720, 8938, 9040, 9266, 10900, 11300, 12317, 16400, 17876, 18532, 21800, 22345, 22600, 23165, 24634, 35752, 37064, 43600, 44690, 45200, 46330, 49268, 61585, 71504, 74128, 89380, 92660, 98536, 111725, 115825, 123170, 178760, 185320, 197072, 223450, 231650, 246340, 307925, 357520, 370640, 446900, 463300, 492680, 504997, 615850, 893800, 926600, 985360, 1009994, 1231700, 1787600, 1853200, 2019988, 2463400, 2524985, 4039976, 4926800, 5049970, 8079952, 10099940, 12624925, 20199880, 25249850, 40399760, 50499700, 100999400, 201998800]

約数ペア:

[(1, 201998800), (2, 100999400), (4, 50499700), (5, 40399760), (8, 25249850), (10, 20199880), (16, 12624925), (20, 10099940), (25, 8079952), (40, 5049970), (41, 4926800), (50, 4039976), (80, 2524985), (82, 2463400), (100, 2019988), (109, 1853200), (113, 1787600), (164, 1231700), (200, 1009994), (205, 985360), (218, 926600), (226, 893800), (328, 615850), (400, 504997), (410, 492680), (436, 463300), (452, 446900), (545, 370640), (565, 357520), (656, 307925), (820, 246340), (872, 231650), (904, 223450), (1025, 197072), (1090, 185320), (1130, 178760), (1640, 123170), (1744, 115825), (1808, 111725), (2050, 98536), (2180, 92660), (2260, 89380), (2725, 74128), (2825, 71504), (3280, 61585), (4100, 49268), (4360, 46330), (4469, 45200), (4520, 44690), (4633, 43600), (5450, 37064), (5650, 35752), (8200, 24634), (8720, 23165), (8938, 22600), (9040, 22345), (9266, 21800), (10900, 18532), (11300, 17876), (12317, 16400)]