20171209970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^2\times {\mathrm{10007}}^1$

素因数の和:10239

約数の個数: 48

約数和(自身を含む): 38597653440

約数和(自身を除く): 18426443470

約数列:

[1, 2, 5, 10, 19, 38, 95, 103, 190, 206, 515, 1030, 1957, 3914, 9785, 10007, 10609, 19570, 20014, 21218, 50035, 53045, 100070, 106090, 190133, 201571, 380266, 403142, 950665, 1007855, 1030721, 1901330, 2015710, 2061442, 5153605, 10307210, 19583699, 39167398, 97918495, 106164263, 195836990, 212328526, 530821315, 1061642630, 2017120997, 4034241994, 10085604985, 20171209970]

約数ペア:

[(1, 20171209970), (2, 10085604985), (5, 4034241994), (10, 2017120997), (19, 1061642630), (38, 530821315), (95, 212328526), (103, 195836990), (190, 106164263), (206, 97918495), (515, 39167398), (1030, 19583699), (1957, 10307210), (3914, 5153605), (9785, 2061442), (10007, 2015710), (10609, 1901330), (19570, 1030721), (20014, 1007855), (21218, 950665), (50035, 403142), (53045, 380266), (100070, 201571), (106090, 190133)]