28772720

素因数分解:

$2^4\times 5^1\times {\mathrm{457}}^1\times {\mathrm{787}}^1$

素因数の和:1257

約数の個数: 40

約数和(自身を含む): 67128144

約数和(自身を除く): 38355424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 457, 787, 914, 1574, 1828, 2285, 3148, 3656, 3935, 4570, 6296, 7312, 7870, 9140, 12592, 15740, 18280, 31480, 36560, 62960, 359659, 719318, 1438636, 1798295, 2877272, 3596590, 5754544, 7193180, 14386360, 28772720]

約数ペア:

[(1, 28772720), (2, 14386360), (4, 7193180), (5, 5754544), (8, 3596590), (10, 2877272), (16, 1798295), (20, 1438636), (40, 719318), (80, 359659), (457, 62960), (787, 36560), (914, 31480), (1574, 18280), (1828, 15740), (2285, 12592), (3148, 9140), (3656, 7870), (3935, 7312), (4570, 6296)]