205021360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{647}}^1$

素因数の和:910

約数の個数: 80

約数和(自身を含む): 507663936

約数和(自身を除く): 302642576

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 233, 272, 340, 466, 647, 680, 932, 1165, 1294, 1360, 1864, 2330, 2588, 3235, 3728, 3961, 4660, 5176, 6470, 7922, 9320, 10352, 10999, 12940, 15844, 18640, 19805, 21998, 25880, 31688, 39610, 43996, 51760, 54995, 63376, 79220, 87992, 109990, 150751, 158440, 175984, 219980, 301502, 316880, 439960, 603004, 753755, 879920, 1206008, 1507510, 2412016, 2562767, 3015020, 5125534, 6030040, 10251068, 12060080, 12813835, 20502136, 25627670, 41004272, 51255340, 102510680, 205021360]

約数ペア:

[(1, 205021360), (2, 102510680), (4, 51255340), (5, 41004272), (8, 25627670), (10, 20502136), (16, 12813835), (17, 12060080), (20, 10251068), (34, 6030040), (40, 5125534), (68, 3015020), (80, 2562767), (85, 2412016), (136, 1507510), (170, 1206008), (233, 879920), (272, 753755), (340, 603004), (466, 439960), (647, 316880), (680, 301502), (932, 219980), (1165, 175984), (1294, 158440), (1360, 150751), (1864, 109990), (2330, 87992), (2588, 79220), (3235, 63376), (3728, 54995), (3961, 51760), (4660, 43996), (5176, 39610), (6470, 31688), (7922, 25880), (9320, 21998), (10352, 19805), (10999, 18640), (12940, 15844)]