1981338120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{557}}^1$

素因数の和:856

約数の個数: 192

約数和(自身を含む): 6635669040

約数和(自身を除く): 4654330920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 41, 45, 60, 72, 82, 90, 120, 123, 164, 180, 205, 241, 246, 328, 360, 369, 410, 482, 492, 557, 615, 723, 738, 820, 964, 984, 1114, 1205, 1230, 1446, 1476, 1640, 1671, 1845, 1928, 2169, 2228, 2410, 2460, 2785, 2892, 2952, 3342, 3615, 3690, 4338, 4456, 4820, 4920, 5013, 5570, 5784, 6684, 7230, 7380, 8355, 8676, 9640, 9881, 10026, 10845, 11140, 13368, 14460, 14760, 16710, 17352, 19762, 20052, 21690, 22280, 22837, 25065, 28920, 29643, 33420, 39524, 40104, 43380, 45674, 49405, 50130, 59286, 66840, 68511, 79048, 86760, 88929, 91348, 98810, 100260, 114185, 118572, 134237, 137022, 148215, 177858, 182696, 197620, 200520, 205533, 228370, 237144, 268474, 274044, 296430, 342555, 355716, 395240, 402711, 411066, 444645, 456740, 536948, 548088, 592860, 671185, 685110, 711432, 805422, 822132, 889290, 913480, 1027665, 1073896, 1185720, 1208133, 1342370, 1370220, 1610844, 1644264, 1778580, 2013555, 2055330, 2416266, 2684740, 2740440, 3221688, 3557160, 4027110, 4110660, 4832532, 5369480, 5503717, 6040665, 8054220, 8221320, 9665064, 11007434, 12081330, 16108440, 16511151, 22014868, 24162660, 27518585, 33022302, 44029736, 48325320, 49533453, 55037170, 66044604, 82555755, 99066906, 110074340, 132089208, 165111510, 198133812, 220148680, 247667265, 330223020, 396267624, 495334530, 660446040, 990669060, 1981338120]

約数ペア:

[(1, 1981338120), (2, 990669060), (3, 660446040), (4, 495334530), (5, 396267624), (6, 330223020), (8, 247667265), (9, 220148680), (10, 198133812), (12, 165111510), (15, 132089208), (18, 110074340), (20, 99066906), (24, 82555755), (30, 66044604), (36, 55037170), (40, 49533453), (41, 48325320), (45, 44029736), (60, 33022302), (72, 27518585), (82, 24162660), (90, 22014868), (120, 16511151), (123, 16108440), (164, 12081330), (180, 11007434), (205, 9665064), (241, 8221320), (246, 8054220), (328, 6040665), (360, 5503717), (369, 5369480), (410, 4832532), (482, 4110660), (492, 4027110), (557, 3557160), (615, 3221688), (723, 2740440), (738, 2684740), (820, 2416266), (964, 2055330), (984, 2013555), (1114, 1778580), (1205, 1644264), (1230, 1610844), (1446, 1370220), (1476, 1342370), (1640, 1208133), (1671, 1185720), (1845, 1073896), (1928, 1027665), (2169, 913480), (2228, 889290), (2410, 822132), (2460, 805422), (2785, 711432), (2892, 685110), (2952, 671185), (3342, 592860), (3615, 548088), (3690, 536948), (4338, 456740), (4456, 444645), (4820, 411066), (4920, 402711), (5013, 395240), (5570, 355716), (5784, 342555), (6684, 296430), (7230, 274044), (7380, 268474), (8355, 237144), (8676, 228370), (9640, 205533), (9881, 200520), (10026, 197620), (10845, 182696), (11140, 177858), (13368, 148215), (14460, 137022), (14760, 134237), (16710, 118572), (17352, 114185), (19762, 100260), (20052, 98810), (21690, 91348), (22280, 88929), (22837, 86760), (25065, 79048), (28920, 68511), (29643, 66840), (33420, 59286), (39524, 50130), (40104, 49405), (43380, 45674)]