19002078280

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1\times {\mathrm{17041}}^1$

素因数の和:17570

約数の個数: 64

約数和(自身を含む): 43553216880

約数和(自身を除く): 24551138600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 457, 488, 610, 914, 1220, 1828, 2285, 2440, 3656, 4570, 9140, 17041, 18280, 27877, 34082, 55754, 68164, 85205, 111508, 136328, 139385, 170410, 223016, 278770, 340820, 557540, 681640, 1039501, 1115080, 2079002, 4158004, 5197505, 7787737, 8316008, 10395010, 15575474, 20790020, 31150948, 38938685, 41580040, 62301896, 77877370, 155754740, 311509480, 475051957, 950103914, 1900207828, 2375259785, 3800415656, 4750519570, 9501039140, 19002078280]

約数ペア:

[(1, 19002078280), (2, 9501039140), (4, 4750519570), (5, 3800415656), (8, 2375259785), (10, 1900207828), (20, 950103914), (40, 475051957), (61, 311509480), (122, 155754740), (244, 77877370), (305, 62301896), (457, 41580040), (488, 38938685), (610, 31150948), (914, 20790020), (1220, 15575474), (1828, 10395010), (2285, 8316008), (2440, 7787737), (3656, 5197505), (4570, 4158004), (9140, 2079002), (17041, 1115080), (18280, 1039501), (27877, 681640), (34082, 557540), (55754, 340820), (68164, 278770), (85205, 223016), (111508, 170410), (136328, 139385)]