254271920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1$

素因数の和:299

約数の個数: 160

約数和(自身を含む): 709287936

約数和(自身を除く): 455016016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 97, 112, 124, 140, 151, 155, 194, 217, 248, 280, 302, 310, 388, 434, 485, 496, 560, 604, 620, 679, 755, 776, 868, 970, 1057, 1085, 1208, 1240, 1358, 1510, 1552, 1736, 1940, 2114, 2170, 2416, 2480, 2716, 3007, 3020, 3395, 3472, 3880, 4228, 4340, 4681, 5285, 5432, 6014, 6040, 6790, 7760, 8456, 8680, 9362, 10570, 10864, 12028, 12080, 13580, 14647, 15035, 16912, 17360, 18724, 21049, 21140, 23405, 24056, 27160, 29294, 30070, 32767, 37448, 42098, 42280, 46810, 48112, 54320, 58588, 60140, 65534, 73235, 74896, 84196, 84560, 93620, 102529, 105245, 117176, 120280, 131068, 146470, 163835, 168392, 187240, 205058, 210490, 234352, 240560, 262136, 292940, 327670, 336784, 374480, 410116, 420980, 454057, 512645, 524272, 585880, 655340, 820232, 841960, 908114, 1025290, 1171760, 1310680, 1640464, 1683920, 1816228, 2050580, 2270285, 2621360, 3178399, 3632456, 4101160, 4540570, 6356798, 7264912, 8202320, 9081140, 12713596, 15891995, 18162280, 25427192, 31783990, 36324560, 50854384, 63567980, 127135960, 254271920]

約数ペア:

[(1, 254271920), (2, 127135960), (4, 63567980), (5, 50854384), (7, 36324560), (8, 31783990), (10, 25427192), (14, 18162280), (16, 15891995), (20, 12713596), (28, 9081140), (31, 8202320), (35, 7264912), (40, 6356798), (56, 4540570), (62, 4101160), (70, 3632456), (80, 3178399), (97, 2621360), (112, 2270285), (124, 2050580), (140, 1816228), (151, 1683920), (155, 1640464), (194, 1310680), (217, 1171760), (248, 1025290), (280, 908114), (302, 841960), (310, 820232), (388, 655340), (434, 585880), (485, 524272), (496, 512645), (560, 454057), (604, 420980), (620, 410116), (679, 374480), (755, 336784), (776, 327670), (868, 292940), (970, 262136), (1057, 240560), (1085, 234352), (1208, 210490), (1240, 205058), (1358, 187240), (1510, 168392), (1552, 163835), (1736, 146470), (1940, 131068), (2114, 120280), (2170, 117176), (2416, 105245), (2480, 102529), (2716, 93620), (3007, 84560), (3020, 84196), (3395, 74896), (3472, 73235), (3880, 65534), (4228, 60140), (4340, 58588), (4681, 54320), (5285, 48112), (5432, 46810), (6014, 42280), (6040, 42098), (6790, 37448), (7760, 32767), (8456, 30070), (8680, 29294), (9362, 27160), (10570, 24056), (10864, 23405), (12028, 21140), (12080, 21049), (13580, 18724), (14647, 17360), (15035, 16912)]