20104114545

素因数分解:

$3^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{316177}}^1$

素因数の和:316351

約数の個数: 40

約数和(自身を含む): 36268146024

約数和(自身を除く): 16164031479

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 157, 405, 471, 785, 1413, 2355, 4239, 7065, 12717, 21195, 63585, 316177, 948531, 1580885, 2845593, 4742655, 8536779, 14227965, 25610337, 42683895, 49639789, 128051685, 148919367, 248198945, 446758101, 744596835, 1340274303, 2233790505, 4020822909, 6701371515, 20104114545]

約数ペア:

[(1, 20104114545), (3, 6701371515), (5, 4020822909), (9, 2233790505), (15, 1340274303), (27, 744596835), (45, 446758101), (81, 248198945), (135, 148919367), (157, 128051685), (405, 49639789), (471, 42683895), (785, 25610337), (1413, 14227965), (2355, 8536779), (4239, 4742655), (7065, 2845593), (12717, 1580885), (21195, 948531), (63585, 316177)]