30938000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 80

約数和(自身を含む): 77376000

約数和(自身を除く): 46438000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 400, 496, 499, 500, 620, 775, 998, 1000, 1240, 1550, 1996, 2000, 2480, 2495, 3100, 3875, 3992, 4990, 6200, 7750, 7984, 9980, 12400, 12475, 15469, 15500, 19960, 24950, 30938, 31000, 39920, 49900, 61876, 62000, 62375, 77345, 99800, 123752, 124750, 154690, 199600, 247504, 249500, 309380, 386725, 499000, 618760, 773450, 998000, 1237520, 1546900, 1933625, 3093800, 3867250, 6187600, 7734500, 15469000, 30938000]

約数ペア:

[(1, 30938000), (2, 15469000), (4, 7734500), (5, 6187600), (8, 3867250), (10, 3093800), (16, 1933625), (20, 1546900), (25, 1237520), (31, 998000), (40, 773450), (50, 618760), (62, 499000), (80, 386725), (100, 309380), (124, 249500), (125, 247504), (155, 199600), (200, 154690), (248, 124750), (250, 123752), (310, 99800), (400, 77345), (496, 62375), (499, 62000), (500, 61876), (620, 49900), (775, 39920), (998, 31000), (1000, 30938), (1240, 24950), (1550, 19960), (1996, 15500), (2000, 15469), (2480, 12475), (2495, 12400), (3100, 9980), (3875, 7984), (3992, 7750), (4990, 6200)]