971309900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{8101}}^1$

素因数の和:8235

約数の個数: 72

約数和(自身を含む): 2320736880

約数和(自身を除く): 1349426980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 109, 110, 218, 220, 275, 436, 545, 550, 1090, 1100, 1199, 2180, 2398, 2725, 4796, 5450, 5995, 8101, 10900, 11990, 16202, 23980, 29975, 32404, 40505, 59950, 81010, 89111, 119900, 162020, 178222, 202525, 356444, 405050, 445555, 810100, 883009, 891110, 1766018, 1782220, 2227775, 3532036, 4415045, 4455550, 8830090, 8911100, 9713099, 17660180, 19426198, 22075225, 38852396, 44150450, 48565495, 88300900, 97130990, 194261980, 242827475, 485654950, 971309900]

約数ペア:

[(1, 971309900), (2, 485654950), (4, 242827475), (5, 194261980), (10, 97130990), (11, 88300900), (20, 48565495), (22, 44150450), (25, 38852396), (44, 22075225), (50, 19426198), (55, 17660180), (100, 9713099), (109, 8911100), (110, 8830090), (218, 4455550), (220, 4415045), (275, 3532036), (436, 2227775), (545, 1782220), (550, 1766018), (1090, 891110), (1100, 883009), (1199, 810100), (2180, 445555), (2398, 405050), (2725, 356444), (4796, 202525), (5450, 178222), (5995, 162020), (8101, 119900), (10900, 89111), (11990, 81010), (16202, 59950), (23980, 40505), (29975, 32404)]