28028520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:196

約数の個数: 192

約数和(自身を含む): 100835280

約数和(自身を除く): 72806760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 53, 60, 65, 72, 78, 90, 104, 106, 113, 117, 120, 130, 156, 159, 180, 195, 212, 226, 234, 260, 265, 312, 318, 339, 360, 390, 424, 452, 468, 477, 520, 530, 565, 585, 636, 678, 689, 780, 795, 904, 936, 954, 1017, 1060, 1130, 1170, 1272, 1356, 1378, 1469, 1560, 1590, 1695, 1908, 2034, 2067, 2120, 2260, 2340, 2385, 2712, 2756, 2938, 3180, 3390, 3445, 3816, 4068, 4134, 4407, 4520, 4680, 4770, 5085, 5512, 5876, 5989, 6201, 6360, 6780, 6890, 7345, 8136, 8268, 8814, 9540, 10170, 10335, 11752, 11978, 12402, 13221, 13560, 13780, 14690, 16536, 17628, 17967, 19080, 20340, 20670, 22035, 23956, 24804, 26442, 27560, 29380, 29945, 31005, 35256, 35934, 40680, 41340, 44070, 47912, 49608, 52884, 53901, 58760, 59890, 62010, 66105, 71868, 77857, 82680, 88140, 89835, 105768, 107802, 119780, 124020, 132210, 143736, 155714, 176280, 179670, 215604, 233571, 239560, 248040, 264420, 269505, 311428, 359340, 389285, 431208, 467142, 528840, 539010, 622856, 700713, 718680, 778570, 934284, 1078020, 1167855, 1401426, 1557140, 1868568, 2156040, 2335710, 2802852, 3114280, 3503565, 4671420, 5605704, 7007130, 9342840, 14014260, 28028520]

約数ペア:

[(1, 28028520), (2, 14014260), (3, 9342840), (4, 7007130), (5, 5605704), (6, 4671420), (8, 3503565), (9, 3114280), (10, 2802852), (12, 2335710), (13, 2156040), (15, 1868568), (18, 1557140), (20, 1401426), (24, 1167855), (26, 1078020), (30, 934284), (36, 778570), (39, 718680), (40, 700713), (45, 622856), (52, 539010), (53, 528840), (60, 467142), (65, 431208), (72, 389285), (78, 359340), (90, 311428), (104, 269505), (106, 264420), (113, 248040), (117, 239560), (120, 233571), (130, 215604), (156, 179670), (159, 176280), (180, 155714), (195, 143736), (212, 132210), (226, 124020), (234, 119780), (260, 107802), (265, 105768), (312, 89835), (318, 88140), (339, 82680), (360, 77857), (390, 71868), (424, 66105), (452, 62010), (468, 59890), (477, 58760), (520, 53901), (530, 52884), (565, 49608), (585, 47912), (636, 44070), (678, 41340), (689, 40680), (780, 35934), (795, 35256), (904, 31005), (936, 29945), (954, 29380), (1017, 27560), (1060, 26442), (1130, 24804), (1170, 23956), (1272, 22035), (1356, 20670), (1378, 20340), (1469, 19080), (1560, 17967), (1590, 17628), (1695, 16536), (1908, 14690), (2034, 13780), (2067, 13560), (2120, 13221), (2260, 12402), (2340, 11978), (2385, 11752), (2712, 10335), (2756, 10170), (2938, 9540), (3180, 8814), (3390, 8268), (3445, 8136), (3816, 7345), (4068, 6890), (4134, 6780), (4407, 6360), (4520, 6201), (4680, 5989), (4770, 5876), (5085, 5512)]