399944961280

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1\times {\mathrm{16547}}^1$

素因数の和:17412

約数の個数: 144

約数和(自身を含む): 1000923122304

約数和(自身を除く): 600978161024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 736, 821, 920, 1280, 1472, 1642, 1840, 2944, 3284, 3680, 4105, 5888, 6568, 7360, 8210, 13136, 14720, 16420, 16547, 18883, 26272, 29440, 32840, 33094, 37766, 52544, 65680, 66188, 75532, 82735, 94415, 105088, 131360, 132376, 151064, 165470, 188830, 210176, 262720, 264752, 302128, 330940, 377660, 380581, 525440, 529504, 604256, 661880, 755320, 761162, 1050880, 1059008, 1208512, 1323760, 1510640, 1522324, 1902905, 2118016, 2417024, 2647520, 3021280, 3044648, 3805810, 4236032, 4834048, 5295040, 6042560, 6089296, 7611620, 10590080, 12085120, 12178592, 13585087, 15223240, 21180160, 24170240, 24357184, 27170174, 30446480, 48714368, 54340348, 60892960, 67925435, 97428736, 108680696, 121785920, 135850870, 217361392, 243571840, 271701740, 312457001, 434722784, 487143680, 543403480, 624914002, 869445568, 1086806960, 1249828004, 1562285005, 1738891136, 2173613920, 2499656008, 3124570010, 3477782272, 4347227840, 4999312016, 6249140020, 8694455680, 9998624032, 12498280040, 17388911360, 19997248064, 24996560080, 39994496128, 49993120160, 79988992256, 99986240320, 199972480640, 399944961280]

約数ペア:

[(1, 399944961280), (2, 199972480640), (4, 99986240320), (5, 79988992256), (8, 49993120160), (10, 39994496128), (16, 24996560080), (20, 19997248064), (23, 17388911360), (32, 12498280040), (40, 9998624032), (46, 8694455680), (64, 6249140020), (80, 4999312016), (92, 4347227840), (115, 3477782272), (128, 3124570010), (160, 2499656008), (184, 2173613920), (230, 1738891136), (256, 1562285005), (320, 1249828004), (368, 1086806960), (460, 869445568), (640, 624914002), (736, 543403480), (821, 487143680), (920, 434722784), (1280, 312457001), (1472, 271701740), (1642, 243571840), (1840, 217361392), (2944, 135850870), (3284, 121785920), (3680, 108680696), (4105, 97428736), (5888, 67925435), (6568, 60892960), (7360, 54340348), (8210, 48714368), (13136, 30446480), (14720, 27170174), (16420, 24357184), (16547, 24170240), (18883, 21180160), (26272, 15223240), (29440, 13585087), (32840, 12178592), (33094, 12085120), (37766, 10590080), (52544, 7611620), (65680, 6089296), (66188, 6042560), (75532, 5295040), (82735, 4834048), (94415, 4236032), (105088, 3805810), (131360, 3044648), (132376, 3021280), (151064, 2647520), (165470, 2417024), (188830, 2118016), (210176, 1902905), (262720, 1522324), (264752, 1510640), (302128, 1323760), (330940, 1208512), (377660, 1059008), (380581, 1050880), (525440, 761162), (529504, 755320), (604256, 661880)]