181239890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{82009}}^1$

素因数の和:82046

約数の個数: 32

約数和(自身を含む): 371997360

約数和(自身を除く): 190757470

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 82009, 164018, 410045, 820090, 1066117, 1394153, 2132234, 2788306, 5330585, 6970765, 10661170, 13941530, 18123989, 36247978, 90619945, 181239890]

約数ペア:

[(1, 181239890), (2, 90619945), (5, 36247978), (10, 18123989), (13, 13941530), (17, 10661170), (26, 6970765), (34, 5330585), (65, 2788306), (85, 2132234), (130, 1394153), (170, 1066117), (221, 820090), (442, 410045), (1105, 164018), (2210, 82009)]