400229440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:189

約数の個数: 224

約数和(自身を含む): 1106058240

約数和(自身を除く): 705828800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 47, 52, 64, 65, 80, 89, 92, 94, 104, 115, 130, 160, 178, 184, 188, 208, 230, 235, 260, 299, 320, 356, 368, 376, 416, 445, 460, 470, 520, 598, 611, 712, 736, 752, 832, 890, 920, 940, 1040, 1081, 1157, 1196, 1222, 1424, 1472, 1495, 1504, 1780, 1840, 1880, 2047, 2080, 2162, 2314, 2392, 2444, 2848, 2990, 3008, 3055, 3560, 3680, 3760, 4094, 4160, 4183, 4324, 4628, 4784, 4888, 5405, 5696, 5785, 5980, 6110, 7120, 7360, 7520, 8188, 8366, 8648, 9256, 9568, 9776, 10235, 10810, 11570, 11960, 12220, 14053, 14240, 15040, 16376, 16732, 17296, 18512, 19136, 19552, 20470, 20915, 21620, 23140, 23920, 24440, 26611, 28106, 28480, 32752, 33464, 34592, 37024, 39104, 40940, 41830, 43240, 46280, 47840, 48880, 53222, 54379, 56212, 65504, 66928, 69184, 70265, 74048, 81880, 83660, 86480, 92560, 95680, 96209, 97760, 106444, 108758, 112424, 131008, 133055, 133856, 140530, 163760, 167320, 172960, 185120, 192418, 195520, 212888, 217516, 224848, 266110, 267712, 271895, 281060, 327520, 334640, 345920, 370240, 384836, 425776, 435032, 449696, 481045, 532220, 543790, 562120, 655040, 669280, 769672, 851552, 870064, 899392, 962090, 1064440, 1087580, 1124240, 1250717, 1338560, 1539344, 1703104, 1740128, 1924180, 2128880, 2175160, 2248480, 2501434, 3078688, 3480256, 3848360, 4257760, 4350320, 4496960, 5002868, 6157376, 6253585, 7696720, 8515520, 8700640, 10005736, 12507170, 15393440, 17401280, 20011472, 25014340, 30786880, 40022944, 50028680, 80045888, 100057360, 200114720, 400229440]

約数ペア:

[(1, 400229440), (2, 200114720), (4, 100057360), (5, 80045888), (8, 50028680), (10, 40022944), (13, 30786880), (16, 25014340), (20, 20011472), (23, 17401280), (26, 15393440), (32, 12507170), (40, 10005736), (46, 8700640), (47, 8515520), (52, 7696720), (64, 6253585), (65, 6157376), (80, 5002868), (89, 4496960), (92, 4350320), (94, 4257760), (104, 3848360), (115, 3480256), (130, 3078688), (160, 2501434), (178, 2248480), (184, 2175160), (188, 2128880), (208, 1924180), (230, 1740128), (235, 1703104), (260, 1539344), (299, 1338560), (320, 1250717), (356, 1124240), (368, 1087580), (376, 1064440), (416, 962090), (445, 899392), (460, 870064), (470, 851552), (520, 769672), (598, 669280), (611, 655040), (712, 562120), (736, 543790), (752, 532220), (832, 481045), (890, 449696), (920, 435032), (940, 425776), (1040, 384836), (1081, 370240), (1157, 345920), (1196, 334640), (1222, 327520), (1424, 281060), (1472, 271895), (1495, 267712), (1504, 266110), (1780, 224848), (1840, 217516), (1880, 212888), (2047, 195520), (2080, 192418), (2162, 185120), (2314, 172960), (2392, 167320), (2444, 163760), (2848, 140530), (2990, 133856), (3008, 133055), (3055, 131008), (3560, 112424), (3680, 108758), (3760, 106444), (4094, 97760), (4160, 96209), (4183, 95680), (4324, 92560), (4628, 86480), (4784, 83660), (4888, 81880), (5405, 74048), (5696, 70265), (5785, 69184), (5980, 66928), (6110, 65504), (7120, 56212), (7360, 54379), (7520, 53222), (8188, 48880), (8366, 47840), (8648, 46280), (9256, 43240), (9568, 41830), (9776, 40940), (10235, 39104), (10810, 37024), (11570, 34592), (11960, 33464), (12220, 32752), (14053, 28480), (14240, 28106), (15040, 26611), (16376, 24440), (16732, 23920), (17296, 23140), (18512, 21620), (19136, 20915), (19552, 20470)]