18917328

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 80

約数和(自身を含む): 52496640

約数和(自身を除く): 33579312

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 97, 102, 136, 194, 204, 239, 272, 291, 388, 408, 478, 582, 717, 776, 816, 956, 1164, 1434, 1552, 1649, 1912, 2328, 2868, 3298, 3824, 4063, 4656, 4947, 5736, 6596, 8126, 9894, 11472, 12189, 13192, 16252, 19788, 23183, 24378, 26384, 32504, 39576, 46366, 48756, 65008, 69549, 79152, 92732, 97512, 139098, 185464, 195024, 278196, 370928, 394111, 556392, 788222, 1112784, 1182333, 1576444, 2364666, 3152888, 4729332, 6305776, 9458664, 18917328]

約数ペア:

[(1, 18917328), (2, 9458664), (3, 6305776), (4, 4729332), (6, 3152888), (8, 2364666), (12, 1576444), (16, 1182333), (17, 1112784), (24, 788222), (34, 556392), (48, 394111), (51, 370928), (68, 278196), (97, 195024), (102, 185464), (136, 139098), (194, 97512), (204, 92732), (239, 79152), (272, 69549), (291, 65008), (388, 48756), (408, 46366), (478, 39576), (582, 32504), (717, 26384), (776, 24378), (816, 23183), (956, 19788), (1164, 16252), (1434, 13192), (1552, 12189), (1649, 11472), (1912, 9894), (2328, 8126), (2868, 6596), (3298, 5736), (3824, 4947), (4063, 4656)]