20380416

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:266

約数の個数: 144

約数和(自身を含む): 65931264

約数和(自身を除く): 45550848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 32, 34, 42, 48, 51, 56, 64, 68, 84, 96, 102, 112, 119, 128, 136, 168, 192, 204, 223, 224, 238, 256, 272, 336, 357, 384, 408, 446, 448, 476, 544, 669, 672, 714, 768, 816, 892, 896, 952, 1088, 1338, 1344, 1428, 1561, 1632, 1784, 1792, 1904, 2176, 2676, 2688, 2856, 3122, 3264, 3568, 3791, 3808, 4352, 4683, 5352, 5376, 5712, 6244, 6528, 7136, 7582, 7616, 9366, 10704, 11373, 11424, 12488, 13056, 14272, 15164, 15232, 18732, 21408, 22746, 22848, 24976, 26537, 28544, 30328, 30464, 37464, 42816, 45492, 45696, 49952, 53074, 57088, 60656, 74928, 79611, 85632, 90984, 91392, 99904, 106148, 121312, 149856, 159222, 171264, 181968, 199808, 212296, 242624, 299712, 318444, 363936, 399616, 424592, 485248, 599424, 636888, 727872, 849184, 970496, 1198848, 1273776, 1455744, 1698368, 2547552, 2911488, 3396736, 5095104, 6793472, 10190208, 20380416]

約数ペア:

[(1, 20380416), (2, 10190208), (3, 6793472), (4, 5095104), (6, 3396736), (7, 2911488), (8, 2547552), (12, 1698368), (14, 1455744), (16, 1273776), (17, 1198848), (21, 970496), (24, 849184), (28, 727872), (32, 636888), (34, 599424), (42, 485248), (48, 424592), (51, 399616), (56, 363936), (64, 318444), (68, 299712), (84, 242624), (96, 212296), (102, 199808), (112, 181968), (119, 171264), (128, 159222), (136, 149856), (168, 121312), (192, 106148), (204, 99904), (223, 91392), (224, 90984), (238, 85632), (256, 79611), (272, 74928), (336, 60656), (357, 57088), (384, 53074), (408, 49952), (446, 45696), (448, 45492), (476, 42816), (544, 37464), (669, 30464), (672, 30328), (714, 28544), (768, 26537), (816, 24976), (892, 22848), (896, 22746), (952, 21408), (1088, 18732), (1338, 15232), (1344, 15164), (1428, 14272), (1561, 13056), (1632, 12488), (1784, 11424), (1792, 11373), (1904, 10704), (2176, 9366), (2676, 7616), (2688, 7582), (2856, 7136), (3122, 6528), (3264, 6244), (3568, 5712), (3791, 5376), (3808, 5352), (4352, 4683)]