257594480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:160

約数の個数: 240

約数和(自身を含む): 748077120

約数和(自身を除く): 490482640

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 23, 26, 40, 44, 46, 52, 55, 65, 80, 88, 89, 92, 104, 110, 115, 121, 130, 143, 176, 178, 184, 208, 220, 230, 242, 253, 260, 286, 299, 356, 368, 440, 445, 460, 484, 506, 520, 572, 598, 605, 712, 715, 880, 890, 920, 968, 979, 1012, 1040, 1144, 1157, 1196, 1210, 1265, 1424, 1430, 1495, 1573, 1780, 1840, 1936, 1958, 2024, 2047, 2288, 2314, 2392, 2420, 2530, 2783, 2860, 2990, 3146, 3289, 3560, 3916, 4048, 4094, 4628, 4784, 4840, 4895, 5060, 5566, 5720, 5785, 5980, 6292, 6578, 7120, 7832, 7865, 8188, 9256, 9680, 9790, 10120, 10235, 10769, 11132, 11440, 11570, 11960, 12584, 12727, 13156, 13915, 15664, 15730, 16376, 16445, 18512, 19580, 20240, 20470, 21538, 22264, 22517, 23140, 23920, 25168, 25454, 26312, 26611, 27830, 31460, 32752, 32890, 36179, 39160, 40940, 43076, 44528, 45034, 46280, 50908, 52624, 53222, 53845, 55660, 62920, 63635, 65780, 72358, 78320, 81880, 86152, 90068, 92560, 101816, 106444, 107690, 111320, 112585, 125840, 127270, 131560, 133055, 139997, 144716, 163760, 172304, 180136, 180895, 203632, 212888, 215380, 222640, 225170, 247687, 254540, 263120, 266110, 279994, 289432, 292721, 360272, 361790, 425776, 430760, 450340, 495374, 509080, 532220, 559988, 578864, 585442, 699985, 723580, 861520, 900680, 990748, 1018160, 1064440, 1119976, 1170884, 1238435, 1399970, 1447160, 1463605, 1801360, 1981496, 2128880, 2239952, 2341768, 2476870, 2799940, 2894320, 2927210, 3219931, 3962992, 4683536, 4953740, 5599880, 5854420, 6439862, 9907480, 11199760, 11708840, 12879724, 16099655, 19814960, 23417680, 25759448, 32199310, 51518896, 64398620, 128797240, 257594480]

約数ペア:

[(1, 257594480), (2, 128797240), (4, 64398620), (5, 51518896), (8, 32199310), (10, 25759448), (11, 23417680), (13, 19814960), (16, 16099655), (20, 12879724), (22, 11708840), (23, 11199760), (26, 9907480), (40, 6439862), (44, 5854420), (46, 5599880), (52, 4953740), (55, 4683536), (65, 3962992), (80, 3219931), (88, 2927210), (89, 2894320), (92, 2799940), (104, 2476870), (110, 2341768), (115, 2239952), (121, 2128880), (130, 1981496), (143, 1801360), (176, 1463605), (178, 1447160), (184, 1399970), (208, 1238435), (220, 1170884), (230, 1119976), (242, 1064440), (253, 1018160), (260, 990748), (286, 900680), (299, 861520), (356, 723580), (368, 699985), (440, 585442), (445, 578864), (460, 559988), (484, 532220), (506, 509080), (520, 495374), (572, 450340), (598, 430760), (605, 425776), (712, 361790), (715, 360272), (880, 292721), (890, 289432), (920, 279994), (968, 266110), (979, 263120), (1012, 254540), (1040, 247687), (1144, 225170), (1157, 222640), (1196, 215380), (1210, 212888), (1265, 203632), (1424, 180895), (1430, 180136), (1495, 172304), (1573, 163760), (1780, 144716), (1840, 139997), (1936, 133055), (1958, 131560), (2024, 127270), (2047, 125840), (2288, 112585), (2314, 111320), (2392, 107690), (2420, 106444), (2530, 101816), (2783, 92560), (2860, 90068), (2990, 86152), (3146, 81880), (3289, 78320), (3560, 72358), (3916, 65780), (4048, 63635), (4094, 62920), (4628, 55660), (4784, 53845), (4840, 53222), (4895, 52624), (5060, 50908), (5566, 46280), (5720, 45034), (5785, 44528), (5980, 43076), (6292, 40940), (6578, 39160), (7120, 36179), (7832, 32890), (7865, 32752), (8188, 31460), (9256, 27830), (9680, 26611), (9790, 26312), (10120, 25454), (10235, 25168), (10769, 23920), (11132, 23140), (11440, 22517), (11570, 22264), (11960, 21538), (12584, 20470), (12727, 20240), (13156, 19580), (13915, 18512), (15664, 16445), (15730, 16376)]