20605800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{563}}^1$

素因数の和:643

約数の個数: 96

約数和(自身を含む): 65040480

約数和(自身を除く): 44434680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 25, 30, 40, 50, 60, 61, 75, 100, 120, 122, 150, 183, 200, 244, 300, 305, 366, 488, 563, 600, 610, 732, 915, 1126, 1220, 1464, 1525, 1689, 1830, 2252, 2440, 2815, 3050, 3378, 3660, 4504, 4575, 5630, 6100, 6756, 7320, 8445, 9150, 11260, 12200, 13512, 14075, 16890, 18300, 22520, 28150, 33780, 34343, 36600, 42225, 56300, 67560, 68686, 84450, 103029, 112600, 137372, 168900, 171715, 206058, 274744, 337800, 343430, 412116, 515145, 686860, 824232, 858575, 1030290, 1373720, 1717150, 2060580, 2575725, 3434300, 4121160, 5151450, 6868600, 10302900, 20605800]

約数ペア:

[(1, 20605800), (2, 10302900), (3, 6868600), (4, 5151450), (5, 4121160), (6, 3434300), (8, 2575725), (10, 2060580), (12, 1717150), (15, 1373720), (20, 1030290), (24, 858575), (25, 824232), (30, 686860), (40, 515145), (50, 412116), (60, 343430), (61, 337800), (75, 274744), (100, 206058), (120, 171715), (122, 168900), (150, 137372), (183, 112600), (200, 103029), (244, 84450), (300, 68686), (305, 67560), (366, 56300), (488, 42225), (563, 36600), (600, 34343), (610, 33780), (732, 28150), (915, 22520), (1126, 18300), (1220, 16890), (1464, 14075), (1525, 13512), (1689, 12200), (1830, 11260), (2252, 9150), (2440, 8445), (2815, 7320), (3050, 6756), (3378, 6100), (3660, 5630), (4504, 4575)]