15561800

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 40176000

約数和(自身を除く): 24614200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 25, 34, 40, 46, 50, 68, 85, 92, 100, 115, 136, 170, 184, 199, 200, 230, 340, 391, 398, 425, 460, 575, 680, 782, 796, 850, 920, 995, 1150, 1564, 1592, 1700, 1955, 1990, 2300, 3128, 3383, 3400, 3910, 3980, 4577, 4600, 4975, 6766, 7820, 7960, 9154, 9775, 9950, 13532, 15640, 16915, 18308, 19550, 19900, 22885, 27064, 33830, 36616, 39100, 39800, 45770, 67660, 77809, 78200, 84575, 91540, 114425, 135320, 155618, 169150, 183080, 228850, 311236, 338300, 389045, 457700, 622472, 676600, 778090, 915400, 1556180, 1945225, 3112360, 3890450, 7780900, 15561800]

約数ペア:

[(1, 15561800), (2, 7780900), (4, 3890450), (5, 3112360), (8, 1945225), (10, 1556180), (17, 915400), (20, 778090), (23, 676600), (25, 622472), (34, 457700), (40, 389045), (46, 338300), (50, 311236), (68, 228850), (85, 183080), (92, 169150), (100, 155618), (115, 135320), (136, 114425), (170, 91540), (184, 84575), (199, 78200), (200, 77809), (230, 67660), (340, 45770), (391, 39800), (398, 39100), (425, 36616), (460, 33830), (575, 27064), (680, 22885), (782, 19900), (796, 19550), (850, 18308), (920, 16915), (995, 15640), (1150, 13532), (1564, 9950), (1592, 9775), (1700, 9154), (1955, 7960), (1990, 7820), (2300, 6766), (3128, 4975), (3383, 4600), (3400, 4577), (3910, 3980)]