215817784

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:261

約数の個数: 128

約数和(自身を含む): 525127680

約数和(自身を除く): 309309896

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 73, 91, 104, 124, 131, 146, 182, 217, 248, 262, 292, 364, 403, 434, 511, 524, 584, 728, 806, 868, 917, 949, 1022, 1048, 1612, 1703, 1736, 1834, 1898, 2044, 2263, 2821, 3224, 3406, 3668, 3796, 4061, 4088, 4526, 5642, 6643, 6812, 7336, 7592, 8122, 9052, 9563, 11284, 11921, 13286, 13624, 15841, 16244, 18104, 19126, 22568, 23842, 26572, 28427, 29419, 31682, 32488, 38252, 47684, 52793, 53144, 56854, 58838, 63364, 66941, 76504, 95368, 105586, 113708, 117676, 124319, 126728, 133882, 205933, 211172, 227416, 235352, 248638, 267764, 296453, 369551, 411866, 422344, 497276, 535528, 592906, 739102, 823732, 870233, 994552, 1185812, 1478204, 1647464, 1740466, 2075171, 2371624, 2956408, 3480932, 3853889, 4150342, 6961864, 7707778, 8300684, 15415556, 16601368, 26977223, 30831112, 53954446, 107908892, 215817784]

約数ペア:

[(1, 215817784), (2, 107908892), (4, 53954446), (7, 30831112), (8, 26977223), (13, 16601368), (14, 15415556), (26, 8300684), (28, 7707778), (31, 6961864), (52, 4150342), (56, 3853889), (62, 3480932), (73, 2956408), (91, 2371624), (104, 2075171), (124, 1740466), (131, 1647464), (146, 1478204), (182, 1185812), (217, 994552), (248, 870233), (262, 823732), (292, 739102), (364, 592906), (403, 535528), (434, 497276), (511, 422344), (524, 411866), (584, 369551), (728, 296453), (806, 267764), (868, 248638), (917, 235352), (949, 227416), (1022, 211172), (1048, 205933), (1612, 133882), (1703, 126728), (1736, 124319), (1834, 117676), (1898, 113708), (2044, 105586), (2263, 95368), (2821, 76504), (3224, 66941), (3406, 63364), (3668, 58838), (3796, 56854), (4061, 53144), (4088, 52793), (4526, 47684), (5642, 38252), (6643, 32488), (6812, 31682), (7336, 29419), (7592, 28427), (8122, 26572), (9052, 23842), (9563, 22568), (11284, 19126), (11921, 18104), (13286, 16244), (13624, 15841)]