18227820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23369}}^1$

素因数の和:23394

約数の個数: 48

約数和(自身を含む): 54966240

約数和(自身を除く): 36738420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23369, 46738, 70107, 93476, 116845, 140214, 233690, 280428, 303797, 350535, 467380, 607594, 701070, 911391, 1215188, 1402140, 1518985, 1822782, 3037970, 3645564, 4556955, 6075940, 9113910, 18227820]

約数ペア:

[(1, 18227820), (2, 9113910), (3, 6075940), (4, 4556955), (5, 3645564), (6, 3037970), (10, 1822782), (12, 1518985), (13, 1402140), (15, 1215188), (20, 911391), (26, 701070), (30, 607594), (39, 467380), (52, 350535), (60, 303797), (65, 280428), (78, 233690), (130, 140214), (156, 116845), (195, 93476), (260, 70107), (390, 46738), (780, 23369)]