81977196

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 241315200

約数和(自身を除く): 159338004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 49, 51, 59, 68, 84, 98, 102, 118, 119, 139, 147, 177, 196, 204, 236, 238, 278, 294, 354, 357, 413, 417, 476, 556, 588, 708, 714, 826, 833, 834, 973, 1003, 1239, 1428, 1652, 1666, 1668, 1946, 2006, 2363, 2478, 2499, 2891, 2919, 3009, 3332, 3892, 4012, 4726, 4956, 4998, 5782, 5838, 6018, 6811, 7021, 7089, 8201, 8673, 9452, 9996, 11564, 11676, 12036, 13622, 14042, 14178, 16402, 16541, 17346, 20433, 21063, 24603, 27244, 28084, 28356, 32804, 33082, 34692, 40866, 42126, 49147, 49206, 49623, 57407, 66164, 81732, 84252, 98294, 98412, 99246, 114814, 115787, 139417, 147441, 172221, 196588, 198492, 229628, 231574, 278834, 294882, 344442, 347361, 401849, 418251, 463148, 557668, 589764, 688884, 694722, 803698, 836502, 975919, 1205547, 1389444, 1607396, 1673004, 1951838, 2411094, 2927757, 3903676, 4822188, 5855514, 6831433, 11711028, 13662866, 20494299, 27325732, 40988598, 81977196]

約数ペア:

[(1, 81977196), (2, 40988598), (3, 27325732), (4, 20494299), (6, 13662866), (7, 11711028), (12, 6831433), (14, 5855514), (17, 4822188), (21, 3903676), (28, 2927757), (34, 2411094), (42, 1951838), (49, 1673004), (51, 1607396), (59, 1389444), (68, 1205547), (84, 975919), (98, 836502), (102, 803698), (118, 694722), (119, 688884), (139, 589764), (147, 557668), (177, 463148), (196, 418251), (204, 401849), (236, 347361), (238, 344442), (278, 294882), (294, 278834), (354, 231574), (357, 229628), (413, 198492), (417, 196588), (476, 172221), (556, 147441), (588, 139417), (708, 115787), (714, 114814), (826, 99246), (833, 98412), (834, 98294), (973, 84252), (1003, 81732), (1239, 66164), (1428, 57407), (1652, 49623), (1666, 49206), (1668, 49147), (1946, 42126), (2006, 40866), (2363, 34692), (2478, 33082), (2499, 32804), (2891, 28356), (2919, 28084), (3009, 27244), (3332, 24603), (3892, 21063), (4012, 20433), (4726, 17346), (4956, 16541), (4998, 16402), (5782, 14178), (5838, 14042), (6018, 13622), (6811, 12036), (7021, 11676), (7089, 11564), (8201, 9996), (8673, 9452)]