16161970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 72

約数和(自身を含む): 34660332

約数和(自身を除く): 18498362

約数列:

[1, 2, 5, 10, 11, 19, 22, 37, 38, 55, 74, 95, 110, 121, 185, 190, 209, 242, 361, 370, 407, 418, 605, 703, 722, 814, 1045, 1210, 1406, 1805, 2035, 2090, 2299, 3515, 3610, 3971, 4070, 4477, 4598, 7030, 7733, 7942, 8954, 11495, 13357, 15466, 19855, 22385, 22990, 26714, 38665, 39710, 43681, 44770, 66785, 77330, 85063, 87362, 133570, 146927, 170126, 218405, 293854, 425315, 436810, 734635, 850630, 1469270, 1616197, 3232394, 8080985, 16161970]

約数ペア:

[(1, 16161970), (2, 8080985), (5, 3232394), (10, 1616197), (11, 1469270), (19, 850630), (22, 734635), (37, 436810), (38, 425315), (55, 293854), (74, 218405), (95, 170126), (110, 146927), (121, 133570), (185, 87362), (190, 85063), (209, 77330), (242, 66785), (361, 44770), (370, 43681), (407, 39710), (418, 38665), (605, 26714), (703, 22990), (722, 22385), (814, 19855), (1045, 15466), (1210, 13357), (1406, 11495), (1805, 8954), (2035, 7942), (2090, 7733), (2299, 7030), (3515, 4598), (3610, 4477), (3971, 4070)]