1813001200

素因数分解:

$2^4\times 5^2\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:635

約数の個数: 120

約数和(自身を含む): 4450429440

約数和(自身を除く): 2637428240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 89, 100, 127, 178, 200, 254, 356, 400, 401, 445, 508, 635, 712, 802, 890, 1016, 1270, 1424, 1604, 1780, 2005, 2032, 2225, 2540, 3175, 3208, 3560, 4010, 4450, 5080, 6350, 6416, 7120, 8020, 8900, 10025, 10160, 11303, 12700, 16040, 17800, 20050, 22606, 25400, 32080, 35600, 35689, 40100, 45212, 50800, 50927, 56515, 71378, 80200, 90424, 101854, 113030, 142756, 160400, 178445, 180848, 203708, 226060, 254635, 282575, 285512, 356890, 407416, 452120, 509270, 565150, 571024, 713780, 814832, 892225, 904240, 1018540, 1130300, 1273175, 1427560, 1784450, 2037080, 2260600, 2546350, 2855120, 3568900, 4074160, 4521200, 4532503, 5092700, 7137800, 9065006, 10185400, 14275600, 18130012, 20370800, 22662515, 36260024, 45325030, 72520048, 90650060, 113312575, 181300120, 226625150, 362600240, 453250300, 906500600, 1813001200]

約数ペア:

[(1, 1813001200), (2, 906500600), (4, 453250300), (5, 362600240), (8, 226625150), (10, 181300120), (16, 113312575), (20, 90650060), (25, 72520048), (40, 45325030), (50, 36260024), (80, 22662515), (89, 20370800), (100, 18130012), (127, 14275600), (178, 10185400), (200, 9065006), (254, 7137800), (356, 5092700), (400, 4532503), (401, 4521200), (445, 4074160), (508, 3568900), (635, 2855120), (712, 2546350), (802, 2260600), (890, 2037080), (1016, 1784450), (1270, 1427560), (1424, 1273175), (1604, 1130300), (1780, 1018540), (2005, 904240), (2032, 892225), (2225, 814832), (2540, 713780), (3175, 571024), (3208, 565150), (3560, 509270), (4010, 452120), (4450, 407416), (5080, 356890), (6350, 285512), (6416, 282575), (7120, 254635), (8020, 226060), (8900, 203708), (10025, 180848), (10160, 178445), (11303, 160400), (12700, 142756), (16040, 113030), (17800, 101854), (20050, 90424), (22606, 80200), (25400, 71378), (32080, 56515), (35600, 50927), (35689, 50800), (40100, 45212)]