87416720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:265

約数の個数: 120

約数和(自身を含む): 228408000

約数和(自身を除く): 140991280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 68, 76, 80, 85, 95, 136, 152, 170, 190, 199, 272, 289, 304, 323, 340, 380, 398, 578, 646, 680, 760, 796, 995, 1156, 1292, 1360, 1445, 1520, 1592, 1615, 1990, 2312, 2584, 2890, 3184, 3230, 3383, 3781, 3980, 4624, 5168, 5491, 5780, 6460, 6766, 7562, 7960, 10982, 11560, 12920, 13532, 15124, 15920, 16915, 18905, 21964, 23120, 25840, 27064, 27455, 30248, 33830, 37810, 43928, 54128, 54910, 57511, 60496, 64277, 67660, 75620, 87856, 109820, 115022, 128554, 135320, 151240, 219640, 230044, 257108, 270640, 287555, 302480, 321385, 439280, 460088, 514216, 575110, 642770, 920176, 1028432, 1092709, 1150220, 1285540, 2185418, 2300440, 2571080, 4370836, 4600880, 5142160, 5463545, 8741672, 10927090, 17483344, 21854180, 43708360, 87416720]

約数ペア:

[(1, 87416720), (2, 43708360), (4, 21854180), (5, 17483344), (8, 10927090), (10, 8741672), (16, 5463545), (17, 5142160), (19, 4600880), (20, 4370836), (34, 2571080), (38, 2300440), (40, 2185418), (68, 1285540), (76, 1150220), (80, 1092709), (85, 1028432), (95, 920176), (136, 642770), (152, 575110), (170, 514216), (190, 460088), (199, 439280), (272, 321385), (289, 302480), (304, 287555), (323, 270640), (340, 257108), (380, 230044), (398, 219640), (578, 151240), (646, 135320), (680, 128554), (760, 115022), (796, 109820), (995, 87856), (1156, 75620), (1292, 67660), (1360, 64277), (1445, 60496), (1520, 57511), (1592, 54910), (1615, 54128), (1990, 43928), (2312, 37810), (2584, 33830), (2890, 30248), (3184, 27455), (3230, 27064), (3383, 25840), (3781, 23120), (3980, 21964), (4624, 18905), (5168, 16915), (5491, 15920), (5780, 15124), (6460, 13532), (6766, 12920), (7562, 11560), (7960, 10982)]