1278408060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1\times {\mathrm{499}}^1$

素因数の和:888

約数の個数: 144

約数和(自身を含む): 3987984000

約数和(自身を除く): 2709575940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 331, 387, 430, 499, 516, 645, 662, 774, 860, 993, 998, 1290, 1324, 1497, 1548, 1655, 1935, 1986, 1996, 2495, 2580, 2979, 2994, 3310, 3870, 3972, 4491, 4965, 4990, 5958, 5988, 6620, 7485, 7740, 8982, 9930, 9980, 11916, 14233, 14895, 14970, 17964, 19860, 21457, 22455, 28466, 29790, 29940, 42699, 42914, 44910, 56932, 59580, 64371, 71165, 85398, 85828, 89820, 107285, 128097, 128742, 142330, 165169, 170796, 193113, 213495, 214570, 256194, 257484, 284660, 321855, 330338, 386226, 426990, 429140, 495507, 512388, 640485, 643710, 660676, 772452, 825845, 853980, 965565, 991014, 1280970, 1287420, 1486521, 1651690, 1931130, 1982028, 2477535, 2561940, 2973042, 3303380, 3862260, 4955070, 5946084, 7102267, 7432605, 9910140, 14204534, 14865210, 21306801, 28409068, 29730420, 35511335, 42613602, 63920403, 71022670, 85227204, 106534005, 127840806, 142045340, 213068010, 255681612, 319602015, 426136020, 639204030, 1278408060]

約数ペア:

[(1, 1278408060), (2, 639204030), (3, 426136020), (4, 319602015), (5, 255681612), (6, 213068010), (9, 142045340), (10, 127840806), (12, 106534005), (15, 85227204), (18, 71022670), (20, 63920403), (30, 42613602), (36, 35511335), (43, 29730420), (45, 28409068), (60, 21306801), (86, 14865210), (90, 14204534), (129, 9910140), (172, 7432605), (180, 7102267), (215, 5946084), (258, 4955070), (331, 3862260), (387, 3303380), (430, 2973042), (499, 2561940), (516, 2477535), (645, 1982028), (662, 1931130), (774, 1651690), (860, 1486521), (993, 1287420), (998, 1280970), (1290, 991014), (1324, 965565), (1497, 853980), (1548, 825845), (1655, 772452), (1935, 660676), (1986, 643710), (1996, 640485), (2495, 512388), (2580, 495507), (2979, 429140), (2994, 426990), (3310, 386226), (3870, 330338), (3972, 321855), (4491, 284660), (4965, 257484), (4990, 256194), (5958, 214570), (5988, 213495), (6620, 193113), (7485, 170796), (7740, 165169), (8982, 142330), (9930, 128742), (9980, 128097), (11916, 107285), (14233, 89820), (14895, 85828), (14970, 85398), (17964, 71165), (19860, 64371), (21457, 59580), (22455, 56932), (28466, 44910), (29790, 42914), (29940, 42699)]