18902980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1049}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 42865200

約数和(自身を除く): 23962220

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1049, 1060, 1802, 2098, 3604, 4196, 4505, 5245, 9010, 10490, 17833, 18020, 20980, 35666, 55597, 71332, 89165, 111194, 178330, 222388, 277985, 356660, 555970, 945149, 1111940, 1890298, 3780596, 4725745, 9451490, 18902980]

約数ペア:

[(1, 18902980), (2, 9451490), (4, 4725745), (5, 3780596), (10, 1890298), (17, 1111940), (20, 945149), (34, 555970), (53, 356660), (68, 277985), (85, 222388), (106, 178330), (170, 111194), (212, 89165), (265, 71332), (340, 55597), (530, 35666), (901, 20980), (1049, 18020), (1060, 17833), (1802, 10490), (2098, 9010), (3604, 5245), (4196, 4505)]