16720841340

素因数分解:

$2^2\times 3^4\times 5^1\times 7^2\times {\mathrm{210643}}^1$

素因数の和:210678

約数の個数: 180

約数和(自身を含む): 61018090056

約数和(自身を除く): 44297248716

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 90, 98, 105, 108, 126, 135, 140, 147, 162, 180, 189, 196, 210, 245, 252, 270, 294, 315, 324, 378, 405, 420, 441, 490, 540, 567, 588, 630, 735, 756, 810, 882, 945, 980, 1134, 1260, 1323, 1470, 1620, 1764, 1890, 2205, 2268, 2646, 2835, 2940, 3780, 3969, 4410, 5292, 5670, 6615, 7938, 8820, 11340, 13230, 15876, 19845, 26460, 39690, 79380, 210643, 421286, 631929, 842572, 1053215, 1263858, 1474501, 1895787, 2106430, 2527716, 2949002, 3159645, 3791574, 4212860, 4423503, 5687361, 5898004, 6319290, 7372505, 7583148, 8847006, 9478935, 10321507, 11374722, 12638580, 13270509, 14745010, 17062083, 17694012, 18957870, 20643014, 22117515, 22749444, 26541018, 28436805, 29490020, 30964521, 34124166, 37915740, 39811527, 41286028, 44235030, 51607535, 53082036, 56873610, 61929042, 66352545, 68248332, 79623054, 85310415, 88470060, 92893563, 103215070, 113747220, 119434581, 123858084, 132705090, 154822605, 159246108, 170620830, 185787126, 199057635, 206430140, 238869162, 265410180, 278680689, 309645210, 341241660, 371574252, 398115270, 464467815, 477738324, 557361378, 597172905, 619290420, 796230540, 836042067, 928935630, 1114722756, 1194345810, 1393403445, 1672084134, 1857871260, 2388691620, 2786806890, 3344168268, 4180210335, 5573613780, 8360420670, 16720841340]

約数ペア:

[(1, 16720841340), (2, 8360420670), (3, 5573613780), (4, 4180210335), (5, 3344168268), (6, 2786806890), (7, 2388691620), (9, 1857871260), (10, 1672084134), (12, 1393403445), (14, 1194345810), (15, 1114722756), (18, 928935630), (20, 836042067), (21, 796230540), (27, 619290420), (28, 597172905), (30, 557361378), (35, 477738324), (36, 464467815), (42, 398115270), (45, 371574252), (49, 341241660), (54, 309645210), (60, 278680689), (63, 265410180), (70, 238869162), (81, 206430140), (84, 199057635), (90, 185787126), (98, 170620830), (105, 159246108), (108, 154822605), (126, 132705090), (135, 123858084), (140, 119434581), (147, 113747220), (162, 103215070), (180, 92893563), (189, 88470060), (196, 85310415), (210, 79623054), (245, 68248332), (252, 66352545), (270, 61929042), (294, 56873610), (315, 53082036), (324, 51607535), (378, 44235030), (405, 41286028), (420, 39811527), (441, 37915740), (490, 34124166), (540, 30964521), (567, 29490020), (588, 28436805), (630, 26541018), (735, 22749444), (756, 22117515), (810, 20643014), (882, 18957870), (945, 17694012), (980, 17062083), (1134, 14745010), (1260, 13270509), (1323, 12638580), (1470, 11374722), (1620, 10321507), (1764, 9478935), (1890, 8847006), (2205, 7583148), (2268, 7372505), (2646, 6319290), (2835, 5898004), (2940, 5687361), (3780, 4423503), (3969, 4212860), (4410, 3791574), (5292, 3159645), (5670, 2949002), (6615, 2527716), (7938, 2106430), (8820, 1895787), (11340, 1474501), (13230, 1263858), (15876, 1053215), (19845, 842572), (26460, 631929), (39690, 421286), (79380, 210643)]