80389520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24509}}^1$

素因数の和:24563

約数の個数: 40

約数和(自身を含む): 191472120

約数和(自身を除く): 111082600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 24509, 49018, 98036, 122545, 196072, 245090, 392144, 490180, 980360, 1004869, 1960720, 2009738, 4019476, 5024345, 8038952, 10048690, 16077904, 20097380, 40194760, 80389520]

約数ペア:

[(1, 80389520), (2, 40194760), (4, 20097380), (5, 16077904), (8, 10048690), (10, 8038952), (16, 5024345), (20, 4019476), (40, 2009738), (41, 1960720), (80, 1004869), (82, 980360), (164, 490180), (205, 392144), (328, 245090), (410, 196072), (656, 122545), (820, 98036), (1640, 49018), (3280, 24509)]