80397380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1031}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 193487616

約数和(自身を除く): 113090236

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 557, 1031, 1114, 2062, 2228, 2785, 3899, 4124, 5155, 5570, 7217, 7798, 10310, 11140, 14434, 15596, 19495, 20620, 28868, 36085, 38990, 72170, 77980, 144340, 574267, 1148534, 2297068, 2871335, 4019869, 5742670, 8039738, 11485340, 16079476, 20099345, 40198690, 80397380]

約数ペア:

[(1, 80397380), (2, 40198690), (4, 20099345), (5, 16079476), (7, 11485340), (10, 8039738), (14, 5742670), (20, 4019869), (28, 2871335), (35, 2297068), (70, 1148534), (140, 574267), (557, 144340), (1031, 77980), (1114, 72170), (2062, 38990), (2228, 36085), (2785, 28868), (3899, 20620), (4124, 19495), (5155, 15596), (5570, 14434), (7217, 11140), (7798, 10310)]