256535520

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{659}}^1\times {\mathrm{811}}^1$

素因数の和:1488

約数の個数: 96

約数和(自身を含む): 810311040

約数和(自身を除く): 553775520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 659, 811, 1318, 1622, 1977, 2433, 2636, 3244, 3295, 3954, 4055, 4866, 5272, 6488, 6590, 7908, 8110, 9732, 9885, 10544, 12165, 12976, 13180, 15816, 16220, 19464, 19770, 21088, 24330, 25952, 26360, 31632, 32440, 38928, 39540, 48660, 52720, 63264, 64880, 77856, 79080, 97320, 105440, 129760, 158160, 194640, 316320, 389280, 534449, 1068898, 1603347, 2137796, 2672245, 3206694, 4275592, 5344490, 6413388, 8016735, 8551184, 10688980, 12826776, 16033470, 17102368, 21377960, 25653552, 32066940, 42755920, 51307104, 64133880, 85511840, 128267760, 256535520]

約数ペア:

[(1, 256535520), (2, 128267760), (3, 85511840), (4, 64133880), (5, 51307104), (6, 42755920), (8, 32066940), (10, 25653552), (12, 21377960), (15, 17102368), (16, 16033470), (20, 12826776), (24, 10688980), (30, 8551184), (32, 8016735), (40, 6413388), (48, 5344490), (60, 4275592), (80, 3206694), (96, 2672245), (120, 2137796), (160, 1603347), (240, 1068898), (480, 534449), (659, 389280), (811, 316320), (1318, 194640), (1622, 158160), (1977, 129760), (2433, 105440), (2636, 97320), (3244, 79080), (3295, 77856), (3954, 64880), (4055, 63264), (4866, 52720), (5272, 48660), (6488, 39540), (6590, 38928), (7908, 32440), (8110, 31632), (9732, 26360), (9885, 25952), (10544, 24330), (12165, 21088), (12976, 19770), (13180, 19464), (15816, 16220)]