218219990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{14423}}^1$

素因数の和:14536

約数の個数: 32

約数和(自身を含む): 420603840

約数和(自身を除く): 202383850

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 890, 1513, 3026, 7565, 14423, 15130, 28846, 72115, 144230, 245191, 490382, 1225955, 1283647, 2451910, 2567294, 6418235, 12836470, 21821999, 43643998, 109109995, 218219990]

約数ペア:

[(1, 218219990), (2, 109109995), (5, 43643998), (10, 21821999), (17, 12836470), (34, 6418235), (85, 2567294), (89, 2451910), (170, 1283647), (178, 1225955), (445, 490382), (890, 245191), (1513, 144230), (3026, 72115), (7565, 28846), (14423, 15130)]