308450000

素因数分解:

$2^4\times 5^5\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:263

約数の個数: 120

約数和(自身を含む): 774950400

約数和(自身を除く): 466500400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 199, 200, 248, 250, 310, 398, 400, 496, 500, 620, 625, 775, 796, 995, 1000, 1240, 1250, 1550, 1592, 1990, 2000, 2480, 2500, 3100, 3125, 3184, 3875, 3980, 4975, 5000, 6169, 6200, 6250, 7750, 7960, 9950, 10000, 12338, 12400, 12500, 15500, 15920, 19375, 19900, 24676, 24875, 25000, 30845, 31000, 38750, 39800, 49352, 49750, 50000, 61690, 62000, 77500, 79600, 96875, 98704, 99500, 123380, 124375, 154225, 155000, 193750, 199000, 246760, 248750, 308450, 310000, 387500, 398000, 493520, 497500, 616900, 621875, 771125, 775000, 995000, 1233800, 1243750, 1542250, 1550000, 1990000, 2467600, 2487500, 3084500, 3855625, 4975000, 6169000, 7711250, 9950000, 12338000, 15422500, 19278125, 30845000, 38556250, 61690000, 77112500, 154225000, 308450000]

約数ペア:

[(1, 308450000), (2, 154225000), (4, 77112500), (5, 61690000), (8, 38556250), (10, 30845000), (16, 19278125), (20, 15422500), (25, 12338000), (31, 9950000), (40, 7711250), (50, 6169000), (62, 4975000), (80, 3855625), (100, 3084500), (124, 2487500), (125, 2467600), (155, 1990000), (199, 1550000), (200, 1542250), (248, 1243750), (250, 1233800), (310, 995000), (398, 775000), (400, 771125), (496, 621875), (500, 616900), (620, 497500), (625, 493520), (775, 398000), (796, 387500), (995, 310000), (1000, 308450), (1240, 248750), (1250, 246760), (1550, 199000), (1592, 193750), (1990, 155000), (2000, 154225), (2480, 124375), (2500, 123380), (3100, 99500), (3125, 98704), (3184, 96875), (3875, 79600), (3980, 77500), (4975, 62000), (5000, 61690), (6169, 50000), (6200, 49750), (6250, 49352), (7750, 39800), (7960, 38750), (9950, 31000), (10000, 30845), (12338, 25000), (12400, 24875), (12500, 24676), (15500, 19900), (15920, 19375)]