28978320

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:437

約数の個数: 160

約数和(自身を含む): 105136128

約数和(自身を除く): 76157808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 47, 48, 56, 60, 70, 80, 84, 94, 105, 112, 120, 140, 141, 168, 188, 210, 235, 240, 280, 282, 329, 336, 367, 376, 420, 470, 560, 564, 658, 705, 734, 752, 840, 940, 987, 1101, 1128, 1316, 1410, 1468, 1645, 1680, 1835, 1880, 1974, 2202, 2256, 2569, 2632, 2820, 2936, 3290, 3670, 3760, 3948, 4404, 4935, 5138, 5264, 5505, 5640, 5872, 6580, 7340, 7707, 7896, 8808, 9870, 10276, 11010, 11280, 12845, 13160, 14680, 15414, 15792, 17249, 17616, 19740, 20552, 22020, 25690, 26320, 29360, 30828, 34498, 38535, 39480, 41104, 44040, 51380, 51747, 61656, 68996, 77070, 78960, 86245, 88080, 102760, 103494, 120743, 123312, 137992, 154140, 172490, 205520, 206988, 241486, 258735, 275984, 308280, 344980, 362229, 413976, 482972, 517470, 603715, 616560, 689960, 724458, 827952, 965944, 1034940, 1207430, 1379920, 1448916, 1811145, 1931888, 2069880, 2414860, 2897832, 3622290, 4139760, 4829720, 5795664, 7244580, 9659440, 14489160, 28978320]

約数ペア:

[(1, 28978320), (2, 14489160), (3, 9659440), (4, 7244580), (5, 5795664), (6, 4829720), (7, 4139760), (8, 3622290), (10, 2897832), (12, 2414860), (14, 2069880), (15, 1931888), (16, 1811145), (20, 1448916), (21, 1379920), (24, 1207430), (28, 1034940), (30, 965944), (35, 827952), (40, 724458), (42, 689960), (47, 616560), (48, 603715), (56, 517470), (60, 482972), (70, 413976), (80, 362229), (84, 344980), (94, 308280), (105, 275984), (112, 258735), (120, 241486), (140, 206988), (141, 205520), (168, 172490), (188, 154140), (210, 137992), (235, 123312), (240, 120743), (280, 103494), (282, 102760), (329, 88080), (336, 86245), (367, 78960), (376, 77070), (420, 68996), (470, 61656), (560, 51747), (564, 51380), (658, 44040), (705, 41104), (734, 39480), (752, 38535), (840, 34498), (940, 30828), (987, 29360), (1101, 26320), (1128, 25690), (1316, 22020), (1410, 20552), (1468, 19740), (1645, 17616), (1680, 17249), (1835, 15792), (1880, 15414), (1974, 14680), (2202, 13160), (2256, 12845), (2569, 11280), (2632, 11010), (2820, 10276), (2936, 9870), (3290, 8808), (3670, 7896), (3760, 7707), (3948, 7340), (4404, 6580), (4935, 5872), (5138, 5640), (5264, 5505)]