19906800

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{313}}^1$

素因数の和:387

約数の個数: 120

約数和(自身を含む): 65178864

約数和(自身を除く): 45272064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 53, 60, 75, 80, 100, 106, 120, 150, 159, 200, 212, 240, 265, 300, 313, 318, 400, 424, 530, 600, 626, 636, 795, 848, 939, 1060, 1200, 1252, 1272, 1325, 1565, 1590, 1878, 2120, 2504, 2544, 2650, 3130, 3180, 3756, 3975, 4240, 4695, 5008, 5300, 6260, 6360, 7512, 7825, 7950, 9390, 10600, 12520, 12720, 15024, 15650, 15900, 16589, 18780, 21200, 23475, 25040, 31300, 31800, 33178, 37560, 46950, 49767, 62600, 63600, 66356, 75120, 82945, 93900, 99534, 125200, 132712, 165890, 187800, 199068, 248835, 265424, 331780, 375600, 398136, 414725, 497670, 663560, 796272, 829450, 995340, 1244175, 1327120, 1658900, 1990680, 2488350, 3317800, 3981360, 4976700, 6635600, 9953400, 19906800]

約数ペア:

[(1, 19906800), (2, 9953400), (3, 6635600), (4, 4976700), (5, 3981360), (6, 3317800), (8, 2488350), (10, 1990680), (12, 1658900), (15, 1327120), (16, 1244175), (20, 995340), (24, 829450), (25, 796272), (30, 663560), (40, 497670), (48, 414725), (50, 398136), (53, 375600), (60, 331780), (75, 265424), (80, 248835), (100, 199068), (106, 187800), (120, 165890), (150, 132712), (159, 125200), (200, 99534), (212, 93900), (240, 82945), (265, 75120), (300, 66356), (313, 63600), (318, 62600), (400, 49767), (424, 46950), (530, 37560), (600, 33178), (626, 31800), (636, 31300), (795, 25040), (848, 23475), (939, 21200), (1060, 18780), (1200, 16589), (1252, 15900), (1272, 15650), (1325, 15024), (1565, 12720), (1590, 12520), (1878, 10600), (2120, 9390), (2504, 7950), (2544, 7825), (2650, 7512), (3130, 6360), (3180, 6260), (3756, 5300), (3975, 5008), (4240, 4695)]