28727120

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2203}}^1$

素因数の和:2379

約数の個数: 40

約数和(自身を含む): 67230816

約数和(自身を除く): 38503696

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2203, 2608, 3260, 4406, 6520, 8812, 11015, 13040, 17624, 22030, 35248, 44060, 88120, 176240, 359089, 718178, 1436356, 1795445, 2872712, 3590890, 5745424, 7181780, 14363560, 28727120]

約数ペア:

[(1, 28727120), (2, 14363560), (4, 7181780), (5, 5745424), (8, 3590890), (10, 2872712), (16, 1795445), (20, 1436356), (40, 718178), (80, 359089), (163, 176240), (326, 88120), (652, 44060), (815, 35248), (1304, 22030), (1630, 17624), (2203, 13040), (2608, 11015), (3260, 8812), (4406, 6520)]