87721360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1217}}^1$

素因数の和:1300

約数の個数: 80

約数和(自身を含む): 220204656

約数和(自身を除く): 132483296

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 53, 68, 80, 85, 106, 136, 170, 212, 265, 272, 340, 424, 530, 680, 848, 901, 1060, 1217, 1360, 1802, 2120, 2434, 3604, 4240, 4505, 4868, 6085, 7208, 9010, 9736, 12170, 14416, 18020, 19472, 20689, 24340, 36040, 41378, 48680, 64501, 72080, 82756, 97360, 103445, 129002, 165512, 206890, 258004, 322505, 331024, 413780, 516008, 645010, 827560, 1032016, 1096517, 1290020, 1655120, 2193034, 2580040, 4386068, 5160080, 5482585, 8772136, 10965170, 17544272, 21930340, 43860680, 87721360]

約数ペア:

[(1, 87721360), (2, 43860680), (4, 21930340), (5, 17544272), (8, 10965170), (10, 8772136), (16, 5482585), (17, 5160080), (20, 4386068), (34, 2580040), (40, 2193034), (53, 1655120), (68, 1290020), (80, 1096517), (85, 1032016), (106, 827560), (136, 645010), (170, 516008), (212, 413780), (265, 331024), (272, 322505), (340, 258004), (424, 206890), (530, 165512), (680, 129002), (848, 103445), (901, 97360), (1060, 82756), (1217, 72080), (1360, 64501), (1802, 48680), (2120, 41378), (2434, 36040), (3604, 24340), (4240, 20689), (4505, 19472), (4868, 18020), (6085, 14416), (7208, 12170), (9010, 9736)]