55280000

素因数分解:

$2^7\times 5^4\times {\mathrm{691}}^1$

素因数の和:725

約数の個数: 80

約数和(自身を含む): 137815260

約数和(自身を除く): 82535260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 691, 800, 1000, 1250, 1382, 1600, 2000, 2500, 2764, 3200, 3455, 4000, 5000, 5528, 6910, 8000, 10000, 11056, 13820, 16000, 17275, 20000, 22112, 27640, 34550, 40000, 44224, 55280, 69100, 80000, 86375, 88448, 110560, 138200, 172750, 221120, 276400, 345500, 431875, 442240, 552800, 691000, 863750, 1105600, 1382000, 1727500, 2211200, 2764000, 3455000, 5528000, 6910000, 11056000, 13820000, 27640000, 55280000]

約数ペア:

[(1, 55280000), (2, 27640000), (4, 13820000), (5, 11056000), (8, 6910000), (10, 5528000), (16, 3455000), (20, 2764000), (25, 2211200), (32, 1727500), (40, 1382000), (50, 1105600), (64, 863750), (80, 691000), (100, 552800), (125, 442240), (128, 431875), (160, 345500), (200, 276400), (250, 221120), (320, 172750), (400, 138200), (500, 110560), (625, 88448), (640, 86375), (691, 80000), (800, 69100), (1000, 55280), (1250, 44224), (1382, 40000), (1600, 34550), (2000, 27640), (2500, 22112), (2764, 20000), (3200, 17275), (3455, 16000), (4000, 13820), (5000, 11056), (5528, 10000), (6910, 8000)]