281485456

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:333

約数の個数: 160

約数和(自身を含む): 719953920

約数和(自身を除く): 438468464

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 31, 34, 38, 56, 62, 68, 76, 112, 119, 124, 133, 136, 152, 217, 238, 248, 251, 266, 272, 304, 323, 434, 476, 496, 502, 527, 532, 589, 646, 868, 952, 1004, 1054, 1064, 1178, 1292, 1736, 1757, 1904, 2008, 2108, 2128, 2261, 2356, 2584, 3472, 3514, 3689, 4016, 4123, 4216, 4267, 4522, 4712, 4769, 5168, 7028, 7378, 7781, 8246, 8432, 8534, 9044, 9424, 9538, 10013, 14056, 14756, 15562, 16492, 17068, 18088, 19076, 20026, 28112, 29512, 29869, 31124, 32984, 33383, 34136, 36176, 38152, 40052, 54467, 59024, 59738, 62248, 65968, 66766, 68272, 70091, 76304, 80104, 81073, 108934, 119476, 124496, 132277, 133532, 140182, 147839, 160208, 162146, 217868, 238952, 264554, 267064, 280364, 295678, 324292, 435736, 477904, 529108, 534128, 560728, 567511, 591356, 648584, 871472, 925939, 1034873, 1058216, 1121456, 1135022, 1182712, 1297168, 1851878, 2069746, 2116432, 2270044, 2365424, 2513263, 3703756, 4139492, 4540088, 5026526, 7407512, 8278984, 9080176, 10053052, 14815024, 16557968, 17592841, 20106104, 35185682, 40212208, 70371364, 140742728, 281485456]

約数ペア:

[(1, 281485456), (2, 140742728), (4, 70371364), (7, 40212208), (8, 35185682), (14, 20106104), (16, 17592841), (17, 16557968), (19, 14815024), (28, 10053052), (31, 9080176), (34, 8278984), (38, 7407512), (56, 5026526), (62, 4540088), (68, 4139492), (76, 3703756), (112, 2513263), (119, 2365424), (124, 2270044), (133, 2116432), (136, 2069746), (152, 1851878), (217, 1297168), (238, 1182712), (248, 1135022), (251, 1121456), (266, 1058216), (272, 1034873), (304, 925939), (323, 871472), (434, 648584), (476, 591356), (496, 567511), (502, 560728), (527, 534128), (532, 529108), (589, 477904), (646, 435736), (868, 324292), (952, 295678), (1004, 280364), (1054, 267064), (1064, 264554), (1178, 238952), (1292, 217868), (1736, 162146), (1757, 160208), (1904, 147839), (2008, 140182), (2108, 133532), (2128, 132277), (2261, 124496), (2356, 119476), (2584, 108934), (3472, 81073), (3514, 80104), (3689, 76304), (4016, 70091), (4123, 68272), (4216, 66766), (4267, 65968), (4522, 62248), (4712, 59738), (4769, 59024), (5168, 54467), (7028, 40052), (7378, 38152), (7781, 36176), (8246, 34136), (8432, 33383), (8534, 32984), (9044, 31124), (9424, 29869), (9538, 29512), (10013, 28112), (14056, 20026), (14756, 19076), (15562, 18088), (16492, 17068)]