399883520

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 216

約数和(自身を含む): 1084333824

約数和(自身を除く): 684450304

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 47, 64, 68, 80, 85, 92, 94, 115, 128, 136, 160, 170, 184, 188, 230, 235, 256, 272, 289, 320, 340, 368, 376, 391, 460, 470, 544, 578, 640, 680, 736, 752, 782, 799, 920, 940, 1081, 1088, 1156, 1280, 1360, 1445, 1472, 1504, 1564, 1598, 1840, 1880, 1955, 2162, 2176, 2312, 2720, 2890, 2944, 3008, 3128, 3196, 3680, 3760, 3910, 3995, 4324, 4352, 4624, 5405, 5440, 5780, 5888, 6016, 6256, 6392, 6647, 7360, 7520, 7820, 7990, 8648, 9248, 10810, 10880, 11560, 12032, 12512, 12784, 13294, 13583, 14720, 15040, 15640, 15980, 17296, 18377, 18496, 21620, 21760, 23120, 25024, 25568, 26588, 27166, 29440, 30080, 31280, 31960, 33235, 34592, 36754, 36992, 43240, 46240, 50048, 51136, 53176, 54332, 60160, 62560, 63920, 66470, 67915, 69184, 73508, 73984, 86480, 91885, 92480, 100096, 102272, 106352, 108664, 125120, 127840, 132940, 135830, 138368, 147016, 172960, 183770, 184960, 204544, 212704, 217328, 250240, 255680, 265880, 271660, 276736, 294032, 312409, 345920, 367540, 369920, 425408, 434656, 500480, 511360, 531760, 543320, 588064, 624818, 691840, 735080, 850816, 869312, 1022720, 1063520, 1086640, 1176128, 1249636, 1383680, 1470160, 1562045, 1701632, 1738624, 2127040, 2173280, 2352256, 2499272, 2940320, 3124090, 3477248, 4254080, 4346560, 4704512, 4998544, 5880640, 6248180, 8508160, 8693120, 9997088, 11761280, 12496360, 17386240, 19994176, 23522560, 24992720, 39988352, 49985440, 79976704, 99970880, 199941760, 399883520]

約数ペア:

[(1, 399883520), (2, 199941760), (4, 99970880), (5, 79976704), (8, 49985440), (10, 39988352), (16, 24992720), (17, 23522560), (20, 19994176), (23, 17386240), (32, 12496360), (34, 11761280), (40, 9997088), (46, 8693120), (47, 8508160), (64, 6248180), (68, 5880640), (80, 4998544), (85, 4704512), (92, 4346560), (94, 4254080), (115, 3477248), (128, 3124090), (136, 2940320), (160, 2499272), (170, 2352256), (184, 2173280), (188, 2127040), (230, 1738624), (235, 1701632), (256, 1562045), (272, 1470160), (289, 1383680), (320, 1249636), (340, 1176128), (368, 1086640), (376, 1063520), (391, 1022720), (460, 869312), (470, 850816), (544, 735080), (578, 691840), (640, 624818), (680, 588064), (736, 543320), (752, 531760), (782, 511360), (799, 500480), (920, 434656), (940, 425408), (1081, 369920), (1088, 367540), (1156, 345920), (1280, 312409), (1360, 294032), (1445, 276736), (1472, 271660), (1504, 265880), (1564, 255680), (1598, 250240), (1840, 217328), (1880, 212704), (1955, 204544), (2162, 184960), (2176, 183770), (2312, 172960), (2720, 147016), (2890, 138368), (2944, 135830), (3008, 132940), (3128, 127840), (3196, 125120), (3680, 108664), (3760, 106352), (3910, 102272), (3995, 100096), (4324, 92480), (4352, 91885), (4624, 86480), (5405, 73984), (5440, 73508), (5780, 69184), (5888, 67915), (6016, 66470), (6256, 63920), (6392, 62560), (6647, 60160), (7360, 54332), (7520, 53176), (7820, 51136), (7990, 50048), (8648, 46240), (9248, 43240), (10810, 36992), (10880, 36754), (11560, 34592), (12032, 33235), (12512, 31960), (12784, 31280), (13294, 30080), (13583, 29440), (14720, 27166), (15040, 26588), (15640, 25568), (15980, 25024), (17296, 23120), (18377, 21760), (18496, 21620)]