209124560

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{35809}}^1$

素因数の和:35895

約数の個数: 40

約数和(自身を含む): 492888840

約数和(自身を除く): 283764280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 292, 365, 584, 730, 1168, 1460, 2920, 5840, 35809, 71618, 143236, 179045, 286472, 358090, 572944, 716180, 1432360, 2614057, 2864720, 5228114, 10456228, 13070285, 20912456, 26140570, 41824912, 52281140, 104562280, 209124560]

約数ペア:

[(1, 209124560), (2, 104562280), (4, 52281140), (5, 41824912), (8, 26140570), (10, 20912456), (16, 13070285), (20, 10456228), (40, 5228114), (73, 2864720), (80, 2614057), (146, 1432360), (292, 716180), (365, 572944), (584, 358090), (730, 286472), (1168, 179045), (1460, 143236), (2920, 71618), (5840, 35809)]