1787890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{809}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 3674160

約数和(自身を除く): 1886270

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 809, 1105, 1618, 2210, 4045, 8090, 10517, 13753, 21034, 27506, 52585, 68765, 105170, 137530, 178789, 357578, 893945, 1787890]

約数ペア:

[(1, 1787890), (2, 893945), (5, 357578), (10, 178789), (13, 137530), (17, 105170), (26, 68765), (34, 52585), (65, 27506), (85, 21034), (130, 13753), (170, 10517), (221, 8090), (442, 4045), (809, 2210), (1105, 1618)]