1285407620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2819}}^1\times {\mathrm{3257}}^1$

素因数の和:6092

約数の個数: 48

約数和(自身を含む): 3087020160

約数和(自身を除く): 1801612540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2819, 3257, 5638, 6514, 11276, 13028, 14095, 16285, 19733, 22799, 28190, 32570, 39466, 45598, 56380, 65140, 78932, 91196, 98665, 113995, 197330, 227990, 394660, 455980, 9181483, 18362966, 36725932, 45907415, 64270381, 91814830, 128540762, 183629660, 257081524, 321351905, 642703810, 1285407620]

約数ペア:

[(1, 1285407620), (2, 642703810), (4, 321351905), (5, 257081524), (7, 183629660), (10, 128540762), (14, 91814830), (20, 64270381), (28, 45907415), (35, 36725932), (70, 18362966), (140, 9181483), (2819, 455980), (3257, 394660), (5638, 227990), (6514, 197330), (11276, 113995), (13028, 98665), (14095, 91196), (16285, 78932), (19733, 65140), (22799, 56380), (28190, 45598), (32570, 39466)]