20924720

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3583}}^1$

素因数の和:3669

約数の個数: 40

約数和(自身を含む): 49330176

約数和(自身を除く): 28405456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 3583, 5840, 7166, 14332, 17915, 28664, 35830, 57328, 71660, 143320, 261559, 286640, 523118, 1046236, 1307795, 2092472, 2615590, 4184944, 5231180, 10462360, 20924720]

約数ペア:

[(1, 20924720), (2, 10462360), (4, 5231180), (5, 4184944), (8, 2615590), (10, 2092472), (16, 1307795), (20, 1046236), (40, 523118), (73, 286640), (80, 261559), (146, 143320), (292, 71660), (365, 57328), (584, 35830), (730, 28664), (1168, 17915), (1460, 14332), (2920, 7166), (3583, 5840)]