81978400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{14639}}^1$

素因数の和:14666

約数の個数: 72

約数和(自身を含む): 228735360

約数和(自身を除く): 146756960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 140, 160, 175, 200, 224, 280, 350, 400, 560, 700, 800, 1120, 1400, 2800, 5600, 14639, 29278, 58556, 73195, 102473, 117112, 146390, 204946, 234224, 292780, 365975, 409892, 468448, 512365, 585560, 731950, 819784, 1024730, 1171120, 1463900, 1639568, 2049460, 2342240, 2561825, 2927800, 3279136, 4098920, 5123650, 5855600, 8197840, 10247300, 11711200, 16395680, 20494600, 40989200, 81978400]

約数ペア:

[(1, 81978400), (2, 40989200), (4, 20494600), (5, 16395680), (7, 11711200), (8, 10247300), (10, 8197840), (14, 5855600), (16, 5123650), (20, 4098920), (25, 3279136), (28, 2927800), (32, 2561825), (35, 2342240), (40, 2049460), (50, 1639568), (56, 1463900), (70, 1171120), (80, 1024730), (100, 819784), (112, 731950), (140, 585560), (160, 512365), (175, 468448), (200, 409892), (224, 365975), (280, 292780), (350, 234224), (400, 204946), (560, 146390), (700, 117112), (800, 102473), (1120, 73195), (1400, 58556), (2800, 29278), (5600, 14639)]