8889797980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{114001}}^1$

素因数の和:114574

約数の個数: 48

約数和(自身を含む): 21374006976

約数和(自身を除く): 12484208996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 557, 1114, 2228, 2785, 3899, 5570, 7798, 11140, 15596, 19495, 38990, 77980, 114001, 228002, 456004, 570005, 798007, 1140010, 1596014, 2280020, 3192028, 3990035, 7980070, 15960140, 63498557, 126997114, 253994228, 317492785, 444489899, 634985570, 888979798, 1269971140, 1777959596, 2222449495, 4444898990, 8889797980]

約数ペア:

[(1, 8889797980), (2, 4444898990), (4, 2222449495), (5, 1777959596), (7, 1269971140), (10, 888979798), (14, 634985570), (20, 444489899), (28, 317492785), (35, 253994228), (70, 126997114), (140, 63498557), (557, 15960140), (1114, 7980070), (2228, 3990035), (2785, 3192028), (3899, 2280020), (5570, 1596014), (7798, 1140010), (11140, 798007), (15596, 570005), (19495, 456004), (38990, 228002), (77980, 114001)]