19981200

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{16651}}^1$

素因数の和:16672

約数の個数: 60

約数和(自身を含む): 64010288

約数和(自身を除く): 44029088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 600, 1200, 16651, 33302, 49953, 66604, 83255, 99906, 133208, 166510, 199812, 249765, 266416, 333020, 399624, 416275, 499530, 666040, 799248, 832550, 999060, 1248825, 1332080, 1665100, 1998120, 2497650, 3330200, 3996240, 4995300, 6660400, 9990600, 19981200]

約数ペア:

[(1, 19981200), (2, 9990600), (3, 6660400), (4, 4995300), (5, 3996240), (6, 3330200), (8, 2497650), (10, 1998120), (12, 1665100), (15, 1332080), (16, 1248825), (20, 999060), (24, 832550), (25, 799248), (30, 666040), (40, 499530), (48, 416275), (50, 399624), (60, 333020), (75, 266416), (80, 249765), (100, 199812), (120, 166510), (150, 133208), (200, 99906), (240, 83255), (300, 66604), (400, 49953), (600, 33302), (1200, 16651)]