28490480

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1597}}^1$

素因数の和:1833

約数の個数: 40

約数和(自身を含む): 66579072

約数和(自身を除く): 38088592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1597, 1784, 2230, 3194, 3568, 4460, 6388, 7985, 8920, 12776, 15970, 17840, 25552, 31940, 63880, 127760, 356131, 712262, 1424524, 1780655, 2849048, 3561310, 5698096, 7122620, 14245240, 28490480]

約数ペア:

[(1, 28490480), (2, 14245240), (4, 7122620), (5, 5698096), (8, 3561310), (10, 2849048), (16, 1780655), (20, 1424524), (40, 712262), (80, 356131), (223, 127760), (446, 63880), (892, 31940), (1115, 25552), (1597, 17840), (1784, 15970), (2230, 12776), (3194, 8920), (3568, 7985), (4460, 6388)]