30181980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21871}}^1$

素因数の和:21906

約数の個数: 48

約数和(自身を含む): 88187904

約数和(自身を除く): 58005924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 21871, 43742, 65613, 87484, 109355, 131226, 218710, 262452, 328065, 437420, 503033, 656130, 1006066, 1312260, 1509099, 2012132, 2515165, 3018198, 5030330, 6036396, 7545495, 10060660, 15090990, 30181980]

約数ペア:

[(1, 30181980), (2, 15090990), (3, 10060660), (4, 7545495), (5, 6036396), (6, 5030330), (10, 3018198), (12, 2515165), (15, 2012132), (20, 1509099), (23, 1312260), (30, 1006066), (46, 656130), (60, 503033), (69, 437420), (92, 328065), (115, 262452), (138, 218710), (230, 131226), (276, 109355), (345, 87484), (460, 65613), (690, 43742), (1380, 21871)]