28195980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{823}}^1$

素因数の和:1406

約数の個数: 48

約数和(自身を含む): 79183104

約数和(自身を除く): 50987124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 571, 823, 1142, 1646, 1713, 2284, 2469, 2855, 3292, 3426, 4115, 4938, 5710, 6852, 8230, 8565, 9876, 11420, 12345, 16460, 17130, 24690, 34260, 49380, 469933, 939866, 1409799, 1879732, 2349665, 2819598, 4699330, 5639196, 7048995, 9398660, 14097990, 28195980]

約数ペア:

[(1, 28195980), (2, 14097990), (3, 9398660), (4, 7048995), (5, 5639196), (6, 4699330), (10, 2819598), (12, 2349665), (15, 1879732), (20, 1409799), (30, 939866), (60, 469933), (571, 49380), (823, 34260), (1142, 24690), (1646, 17130), (1713, 16460), (2284, 12345), (2469, 11420), (2855, 9876), (3292, 8565), (3426, 8230), (4115, 6852), (4938, 5710)]