18555940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 45722880

約数和(自身を除く): 27166940

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 29, 46, 52, 58, 65, 92, 107, 115, 116, 130, 145, 214, 230, 260, 290, 299, 377, 428, 460, 535, 580, 598, 667, 754, 1070, 1196, 1334, 1391, 1495, 1508, 1885, 2140, 2461, 2668, 2782, 2990, 3103, 3335, 3770, 4922, 5564, 5980, 6206, 6670, 6955, 7540, 8671, 9844, 12305, 12412, 13340, 13910, 15515, 17342, 24610, 27820, 31030, 31993, 34684, 40339, 43355, 49220, 62060, 63986, 71369, 80678, 86710, 127972, 142738, 159965, 161356, 173420, 201695, 285476, 319930, 356845, 403390, 639860, 713690, 806780, 927797, 1427380, 1855594, 3711188, 4638985, 9277970, 18555940]

約数ペア:

[(1, 18555940), (2, 9277970), (4, 4638985), (5, 3711188), (10, 1855594), (13, 1427380), (20, 927797), (23, 806780), (26, 713690), (29, 639860), (46, 403390), (52, 356845), (58, 319930), (65, 285476), (92, 201695), (107, 173420), (115, 161356), (116, 159965), (130, 142738), (145, 127972), (214, 86710), (230, 80678), (260, 71369), (290, 63986), (299, 62060), (377, 49220), (428, 43355), (460, 40339), (535, 34684), (580, 31993), (598, 31030), (667, 27820), (754, 24610), (1070, 17342), (1196, 15515), (1334, 13910), (1391, 13340), (1495, 12412), (1508, 12305), (1885, 9844), (2140, 8671), (2461, 7540), (2668, 6955), (2782, 6670), (2990, 6206), (3103, 5980), (3335, 5564), (3770, 4922)]