55201520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:594

約数の個数: 80

約数和(自身を含む): 141285600

約数和(自身を除く): 86084080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 149, 176, 220, 298, 421, 440, 596, 745, 842, 880, 1192, 1490, 1639, 1684, 2105, 2384, 2980, 3278, 3368, 4210, 4631, 5960, 6556, 6736, 8195, 8420, 9262, 11920, 13112, 16390, 16840, 18524, 23155, 26224, 32780, 33680, 37048, 46310, 62729, 65560, 74096, 92620, 125458, 131120, 185240, 250916, 313645, 370480, 501832, 627290, 690019, 1003664, 1254580, 1380038, 2509160, 2760076, 3450095, 5018320, 5520152, 6900190, 11040304, 13800380, 27600760, 55201520]

約数ペア:

[(1, 55201520), (2, 27600760), (4, 13800380), (5, 11040304), (8, 6900190), (10, 5520152), (11, 5018320), (16, 3450095), (20, 2760076), (22, 2509160), (40, 1380038), (44, 1254580), (55, 1003664), (80, 690019), (88, 627290), (110, 501832), (149, 370480), (176, 313645), (220, 250916), (298, 185240), (421, 131120), (440, 125458), (596, 92620), (745, 74096), (842, 65560), (880, 62729), (1192, 46310), (1490, 37048), (1639, 33680), (1684, 32780), (2105, 26224), (2384, 23155), (2980, 18524), (3278, 16840), (3368, 16390), (4210, 13112), (4631, 11920), (5960, 9262), (6556, 8420), (6736, 8195)]