28718800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:197

約数の個数: 120

約数和(自身を含む): 77218272

約数和(自身を除く): 48499472

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 61, 80, 88, 100, 107, 110, 122, 176, 200, 214, 220, 244, 275, 305, 400, 428, 440, 488, 535, 550, 610, 671, 856, 880, 976, 1070, 1100, 1177, 1220, 1342, 1525, 1712, 2140, 2200, 2354, 2440, 2675, 2684, 3050, 3355, 4280, 4400, 4708, 4880, 5350, 5368, 5885, 6100, 6527, 6710, 8560, 9416, 10700, 10736, 11770, 12200, 13054, 13420, 16775, 18832, 21400, 23540, 24400, 26108, 26840, 29425, 32635, 33550, 42800, 47080, 52216, 53680, 58850, 65270, 67100, 71797, 94160, 104432, 117700, 130540, 134200, 143594, 163175, 235400, 261080, 268400, 287188, 326350, 358985, 470800, 522160, 574376, 652700, 717970, 1148752, 1305400, 1435940, 1794925, 2610800, 2871880, 3589850, 5743760, 7179700, 14359400, 28718800]

約数ペア:

[(1, 28718800), (2, 14359400), (4, 7179700), (5, 5743760), (8, 3589850), (10, 2871880), (11, 2610800), (16, 1794925), (20, 1435940), (22, 1305400), (25, 1148752), (40, 717970), (44, 652700), (50, 574376), (55, 522160), (61, 470800), (80, 358985), (88, 326350), (100, 287188), (107, 268400), (110, 261080), (122, 235400), (176, 163175), (200, 143594), (214, 134200), (220, 130540), (244, 117700), (275, 104432), (305, 94160), (400, 71797), (428, 67100), (440, 65270), (488, 58850), (535, 53680), (550, 52216), (610, 47080), (671, 42800), (856, 33550), (880, 32635), (976, 29425), (1070, 26840), (1100, 26108), (1177, 24400), (1220, 23540), (1342, 21400), (1525, 18832), (1712, 16775), (2140, 13420), (2200, 13054), (2354, 12200), (2440, 11770), (2675, 10736), (2684, 10700), (3050, 9416), (3355, 8560), (4280, 6710), (4400, 6527), (4708, 6100), (4880, 5885), (5350, 5368)]