123380000

素因数分解:

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

素因数の和:260

約数の個数: 120

約数和(自身を含む): 314899200

約数和(自身を除く): 191519200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 125, 155, 160, 199, 200, 248, 250, 310, 398, 400, 496, 500, 620, 625, 775, 796, 800, 992, 995, 1000, 1240, 1250, 1550, 1592, 1990, 2000, 2480, 2500, 3100, 3184, 3875, 3980, 4000, 4960, 4975, 5000, 6169, 6200, 6368, 7750, 7960, 9950, 10000, 12338, 12400, 15500, 15920, 19375, 19900, 20000, 24676, 24800, 24875, 30845, 31000, 31840, 38750, 39800, 49352, 49750, 61690, 62000, 77500, 79600, 98704, 99500, 123380, 124000, 124375, 154225, 155000, 159200, 197408, 199000, 246760, 248750, 308450, 310000, 398000, 493520, 497500, 616900, 620000, 771125, 796000, 987040, 995000, 1233800, 1542250, 1990000, 2467600, 3084500, 3855625, 3980000, 4935200, 6169000, 7711250, 12338000, 15422500, 24676000, 30845000, 61690000, 123380000]

約数ペア:

[(1, 123380000), (2, 61690000), (4, 30845000), (5, 24676000), (8, 15422500), (10, 12338000), (16, 7711250), (20, 6169000), (25, 4935200), (31, 3980000), (32, 3855625), (40, 3084500), (50, 2467600), (62, 1990000), (80, 1542250), (100, 1233800), (124, 995000), (125, 987040), (155, 796000), (160, 771125), (199, 620000), (200, 616900), (248, 497500), (250, 493520), (310, 398000), (398, 310000), (400, 308450), (496, 248750), (500, 246760), (620, 199000), (625, 197408), (775, 159200), (796, 155000), (800, 154225), (992, 124375), (995, 124000), (1000, 123380), (1240, 99500), (1250, 98704), (1550, 79600), (1592, 77500), (1990, 62000), (2000, 61690), (2480, 49750), (2500, 49352), (3100, 39800), (3184, 38750), (3875, 31840), (3980, 31000), (4000, 30845), (4960, 24875), (4975, 24800), (5000, 24676), (6169, 20000), (6200, 19900), (6368, 19375), (7750, 15920), (7960, 15500), (9950, 12400), (10000, 12338)]