28446780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^2$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 84844368

約数和(自身を除く): 56397588

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 167, 170, 204, 255, 334, 340, 501, 510, 668, 835, 1002, 1020, 1670, 2004, 2505, 2839, 3340, 5010, 5678, 8517, 10020, 11356, 14195, 17034, 27889, 28390, 34068, 42585, 55778, 56780, 83667, 85170, 111556, 139445, 167334, 170340, 278890, 334668, 418335, 474113, 557780, 836670, 948226, 1422339, 1673340, 1896452, 2370565, 2844678, 4741130, 5689356, 7111695, 9482260, 14223390, 28446780]

約数ペア:

[(1, 28446780), (2, 14223390), (3, 9482260), (4, 7111695), (5, 5689356), (6, 4741130), (10, 2844678), (12, 2370565), (15, 1896452), (17, 1673340), (20, 1422339), (30, 948226), (34, 836670), (51, 557780), (60, 474113), (68, 418335), (85, 334668), (102, 278890), (167, 170340), (170, 167334), (204, 139445), (255, 111556), (334, 85170), (340, 83667), (501, 56780), (510, 55778), (668, 42585), (835, 34068), (1002, 28390), (1020, 27889), (1670, 17034), (2004, 14195), (2505, 11356), (2839, 10020), (3340, 8517), (5010, 5678)]