20206200420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{907}}^1\times {\mathrm{17681}}^1$

素因数の和:18610

約数の個数: 144

約数和(自身を含む): 70129358208

約数和(自身を除く): 49923157788

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 907, 1260, 1814, 2721, 3628, 4535, 5442, 6349, 8163, 9070, 10884, 12698, 13605, 16326, 17681, 18140, 19047, 25396, 27210, 31745, 32652, 35362, 38094, 40815, 53043, 54420, 57141, 63490, 70724, 76188, 81630, 88405, 95235, 106086, 114282, 123767, 126980, 159129, 163260, 176810, 190470, 212172, 228564, 247534, 265215, 285705, 318258, 353620, 371301, 380940, 495068, 530430, 571410, 618835, 636516, 742602, 795645, 1060860, 1113903, 1142820, 1237670, 1485204, 1591290, 1856505, 2227806, 2475340, 3182580, 3713010, 4455612, 5569515, 7426020, 11139030, 16036667, 22278060, 32073334, 48110001, 64146668, 80183335, 96220002, 112256669, 144330003, 160366670, 192440004, 224513338, 240550005, 288660006, 320733340, 336770007, 449026676, 481100010, 561283345, 577320012, 673540014, 721650015, 962200020, 1010310021, 1122566690, 1347080028, 1443300030, 1683850035, 2020620042, 2245133380, 2886600060, 3367700070, 4041240084, 5051550105, 6735400140, 10103100210, 20206200420]

約数ペア:

[(1, 20206200420), (2, 10103100210), (3, 6735400140), (4, 5051550105), (5, 4041240084), (6, 3367700070), (7, 2886600060), (9, 2245133380), (10, 2020620042), (12, 1683850035), (14, 1443300030), (15, 1347080028), (18, 1122566690), (20, 1010310021), (21, 962200020), (28, 721650015), (30, 673540014), (35, 577320012), (36, 561283345), (42, 481100010), (45, 449026676), (60, 336770007), (63, 320733340), (70, 288660006), (84, 240550005), (90, 224513338), (105, 192440004), (126, 160366670), (140, 144330003), (180, 112256669), (210, 96220002), (252, 80183335), (315, 64146668), (420, 48110001), (630, 32073334), (907, 22278060), (1260, 16036667), (1814, 11139030), (2721, 7426020), (3628, 5569515), (4535, 4455612), (5442, 3713010), (6349, 3182580), (8163, 2475340), (9070, 2227806), (10884, 1856505), (12698, 1591290), (13605, 1485204), (16326, 1237670), (17681, 1142820), (18140, 1113903), (19047, 1060860), (25396, 795645), (27210, 742602), (31745, 636516), (32652, 618835), (35362, 571410), (38094, 530430), (40815, 495068), (53043, 380940), (54420, 371301), (57141, 353620), (63490, 318258), (70724, 285705), (76188, 265215), (81630, 247534), (88405, 228564), (95235, 212172), (106086, 190470), (114282, 176810), (123767, 163260), (126980, 159129)]