28681520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{51217}}^1$

素因数の和:51237

約数の個数: 40

約数和(自身を含む): 76212384

約数和(自身を除く): 47530864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 51217, 102434, 204868, 256085, 358519, 409736, 512170, 717038, 819472, 1024340, 1434076, 1792595, 2048680, 2868152, 3585190, 4097360, 5736304, 7170380, 14340760, 28681520]

約数ペア:

[(1, 28681520), (2, 14340760), (4, 7170380), (5, 5736304), (7, 4097360), (8, 3585190), (10, 2868152), (14, 2048680), (16, 1792595), (20, 1434076), (28, 1024340), (35, 819472), (40, 717038), (56, 512170), (70, 409736), (80, 358519), (112, 256085), (140, 204868), (280, 102434), (560, 51217)]