21280160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:246

約数の個数: 96

約数和(自身を含む): 55847232

約数和(自身を除く): 34567072

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 107, 110, 113, 160, 176, 214, 220, 226, 352, 428, 440, 452, 535, 565, 856, 880, 904, 1070, 1130, 1177, 1243, 1712, 1760, 1808, 2140, 2260, 2354, 2486, 3424, 3616, 4280, 4520, 4708, 4972, 5885, 6215, 8560, 9040, 9416, 9944, 11770, 12091, 12430, 17120, 18080, 18832, 19888, 23540, 24182, 24860, 37664, 39776, 47080, 48364, 49720, 60455, 94160, 96728, 99440, 120910, 133001, 188320, 193456, 198880, 241820, 266002, 386912, 483640, 532004, 665005, 967280, 1064008, 1330010, 1934560, 2128016, 2660020, 4256032, 5320040, 10640080, 21280160]

約数ペア:

[(1, 21280160), (2, 10640080), (4, 5320040), (5, 4256032), (8, 2660020), (10, 2128016), (11, 1934560), (16, 1330010), (20, 1064008), (22, 967280), (32, 665005), (40, 532004), (44, 483640), (55, 386912), (80, 266002), (88, 241820), (107, 198880), (110, 193456), (113, 188320), (160, 133001), (176, 120910), (214, 99440), (220, 96728), (226, 94160), (352, 60455), (428, 49720), (440, 48364), (452, 47080), (535, 39776), (565, 37664), (856, 24860), (880, 24182), (904, 23540), (1070, 19888), (1130, 18832), (1177, 18080), (1243, 17120), (1712, 12430), (1760, 12091), (1808, 11770), (2140, 9944), (2260, 9416), (2354, 9040), (2486, 8560), (3424, 6215), (3616, 5885), (4280, 4972), (4520, 4708)]