19404120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1601}}^1$

素因数の和:1716

約数の個数: 64

約数和(自身を含む): 58825440

約数和(自身を除く): 39421320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 101, 120, 202, 303, 404, 505, 606, 808, 1010, 1212, 1515, 1601, 2020, 2424, 3030, 3202, 4040, 4803, 6060, 6404, 8005, 9606, 12120, 12808, 16010, 19212, 24015, 32020, 38424, 48030, 64040, 96060, 161701, 192120, 323402, 485103, 646804, 808505, 970206, 1293608, 1617010, 1940412, 2425515, 3234020, 3880824, 4851030, 6468040, 9702060, 19404120]

約数ペア:

[(1, 19404120), (2, 9702060), (3, 6468040), (4, 4851030), (5, 3880824), (6, 3234020), (8, 2425515), (10, 1940412), (12, 1617010), (15, 1293608), (20, 970206), (24, 808505), (30, 646804), (40, 485103), (60, 323402), (101, 192120), (120, 161701), (202, 96060), (303, 64040), (404, 48030), (505, 38424), (606, 32020), (808, 24015), (1010, 19212), (1212, 16010), (1515, 12808), (1601, 12120), (2020, 9606), (2424, 8005), (3030, 6404), (3202, 6060), (4040, 4803)]