991258236

素因数分解:

$2^2\times 3^5\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{251}}^1$

素因数の和:526

約数の個数: 144

約数和(自身を含む): 2773854720

約数和(自身を除く): 1782596484

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 108, 153, 162, 204, 239, 243, 251, 306, 324, 459, 478, 486, 502, 612, 717, 753, 918, 956, 972, 1004, 1377, 1434, 1506, 1836, 2151, 2259, 2754, 2868, 3012, 4063, 4131, 4267, 4302, 4518, 5508, 6453, 6777, 8126, 8262, 8534, 8604, 9036, 12189, 12801, 12906, 13554, 16252, 16524, 17068, 19359, 20331, 24378, 25602, 25812, 27108, 36567, 38403, 38718, 40662, 48756, 51204, 58077, 59989, 60993, 73134, 76806, 77436, 81324, 109701, 115209, 116154, 119978, 121986, 146268, 153612, 179967, 219402, 230418, 232308, 239956, 243972, 329103, 345627, 359934, 438804, 460836, 539901, 658206, 691254, 719868, 987309, 1019813, 1036881, 1079802, 1316412, 1382508, 1619703, 1974618, 2039626, 2073762, 2159604, 3059439, 3239406, 3949236, 4079252, 4147524, 4859109, 6118878, 6478812, 9178317, 9718218, 12237756, 14577327, 18356634, 19436436, 27534951, 29154654, 36713268, 55069902, 58309308, 82604853, 110139804, 165209706, 247814559, 330419412, 495629118, 991258236]

約数ペア:

[(1, 991258236), (2, 495629118), (3, 330419412), (4, 247814559), (6, 165209706), (9, 110139804), (12, 82604853), (17, 58309308), (18, 55069902), (27, 36713268), (34, 29154654), (36, 27534951), (51, 19436436), (54, 18356634), (68, 14577327), (81, 12237756), (102, 9718218), (108, 9178317), (153, 6478812), (162, 6118878), (204, 4859109), (239, 4147524), (243, 4079252), (251, 3949236), (306, 3239406), (324, 3059439), (459, 2159604), (478, 2073762), (486, 2039626), (502, 1974618), (612, 1619703), (717, 1382508), (753, 1316412), (918, 1079802), (956, 1036881), (972, 1019813), (1004, 987309), (1377, 719868), (1434, 691254), (1506, 658206), (1836, 539901), (2151, 460836), (2259, 438804), (2754, 359934), (2868, 345627), (3012, 329103), (4063, 243972), (4131, 239956), (4267, 232308), (4302, 230418), (4518, 219402), (5508, 179967), (6453, 153612), (6777, 146268), (8126, 121986), (8262, 119978), (8534, 116154), (8604, 115209), (9036, 109701), (12189, 81324), (12801, 77436), (12906, 76806), (13554, 73134), (16252, 60993), (16524, 59989), (17068, 58077), (19359, 51204), (20331, 48756), (24378, 40662), (25602, 38718), (25812, 38403), (27108, 36567)]