19648480

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3319}}^1$

素因数の和:3371

約数の個数: 48

約数和(自身を含む): 47688480

約数和(自身を除く): 28040000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3319, 5920, 6638, 13276, 16595, 26552, 33190, 53104, 66380, 106208, 122803, 132760, 245606, 265520, 491212, 531040, 614015, 982424, 1228030, 1964848, 2456060, 3929696, 4912120, 9824240, 19648480]

約数ペア:

[(1, 19648480), (2, 9824240), (4, 4912120), (5, 3929696), (8, 2456060), (10, 1964848), (16, 1228030), (20, 982424), (32, 614015), (37, 531040), (40, 491212), (74, 265520), (80, 245606), (148, 132760), (160, 122803), (185, 106208), (296, 66380), (370, 53104), (592, 33190), (740, 26552), (1184, 16595), (1480, 13276), (2960, 6638), (3319, 5920)]