169883320

素因数分解:

$2^3\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{2131}}^1$

素因数の和:4135

約数の個数: 32

約数和(自身を含む): 382608720

約数和(自身を除く): 212725400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1993, 2131, 3986, 4262, 7972, 8524, 9965, 10655, 15944, 17048, 19930, 21310, 39860, 42620, 79720, 85240, 4247083, 8494166, 16988332, 21235415, 33976664, 42470830, 84941660, 169883320]

約数ペア:

[(1, 169883320), (2, 84941660), (4, 42470830), (5, 33976664), (8, 21235415), (10, 16988332), (20, 8494166), (40, 4247083), (1993, 85240), (2131, 79720), (3986, 42620), (4262, 39860), (7972, 21310), (8524, 19930), (9965, 17048), (10655, 15944)]