66848080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 160

約数和(自身を含む): 187488000

約数和(自身を除く): 120639920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 80, 85, 95, 104, 130, 136, 152, 170, 190, 199, 208, 221, 247, 260, 272, 304, 323, 340, 380, 398, 442, 494, 520, 646, 680, 760, 796, 884, 988, 995, 1040, 1105, 1235, 1292, 1360, 1520, 1592, 1615, 1768, 1976, 1990, 2210, 2470, 2584, 2587, 3184, 3230, 3383, 3536, 3781, 3952, 3980, 4199, 4420, 4940, 5168, 5174, 6460, 6766, 7562, 7960, 8398, 8840, 9880, 10348, 12920, 12935, 13532, 15124, 15920, 16796, 16915, 17680, 18905, 19760, 20696, 20995, 25840, 25870, 27064, 30248, 33592, 33830, 37810, 41392, 41990, 43979, 49153, 51740, 54128, 60496, 64277, 67184, 67660, 75620, 83980, 87958, 98306, 103480, 128554, 135320, 151240, 167960, 175916, 196612, 206960, 219895, 245765, 257108, 270640, 302480, 321385, 335920, 351832, 393224, 439790, 491530, 514216, 642770, 703664, 786448, 835601, 879580, 983060, 1028432, 1285540, 1671202, 1759160, 1966120, 2571080, 3342404, 3518320, 3932240, 4178005, 5142160, 6684808, 8356010, 13369616, 16712020, 33424040, 66848080]

約数ペア:

[(1, 66848080), (2, 33424040), (4, 16712020), (5, 13369616), (8, 8356010), (10, 6684808), (13, 5142160), (16, 4178005), (17, 3932240), (19, 3518320), (20, 3342404), (26, 2571080), (34, 1966120), (38, 1759160), (40, 1671202), (52, 1285540), (65, 1028432), (68, 983060), (76, 879580), (80, 835601), (85, 786448), (95, 703664), (104, 642770), (130, 514216), (136, 491530), (152, 439790), (170, 393224), (190, 351832), (199, 335920), (208, 321385), (221, 302480), (247, 270640), (260, 257108), (272, 245765), (304, 219895), (323, 206960), (340, 196612), (380, 175916), (398, 167960), (442, 151240), (494, 135320), (520, 128554), (646, 103480), (680, 98306), (760, 87958), (796, 83980), (884, 75620), (988, 67660), (995, 67184), (1040, 64277), (1105, 60496), (1235, 54128), (1292, 51740), (1360, 49153), (1520, 43979), (1592, 41990), (1615, 41392), (1768, 37810), (1976, 33830), (1990, 33592), (2210, 30248), (2470, 27064), (2584, 25870), (2587, 25840), (3184, 20995), (3230, 20696), (3383, 19760), (3536, 18905), (3781, 17680), (3952, 16915), (3980, 16796), (4199, 15920), (4420, 15124), (4940, 13532), (5168, 12935), (5174, 12920), (6460, 10348), (6766, 9880), (7562, 8840), (7960, 8398)]