20180449940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{535859}}^1$

素因数の和:536144

約数の個数: 48

約数和(自身を含む): 48613219200

約数和(自身を除く): 28432769260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 269, 538, 1076, 1345, 1883, 2690, 3766, 5380, 7532, 9415, 18830, 37660, 535859, 1071718, 2143436, 2679295, 3751013, 5358590, 7502026, 10717180, 15004052, 18755065, 37510130, 75020260, 144146071, 288292142, 576584284, 720730355, 1009022497, 1441460710, 2018044994, 2882921420, 4036089988, 5045112485, 10090224970, 20180449940]

約数ペア:

[(1, 20180449940), (2, 10090224970), (4, 5045112485), (5, 4036089988), (7, 2882921420), (10, 2018044994), (14, 1441460710), (20, 1009022497), (28, 720730355), (35, 576584284), (70, 288292142), (140, 144146071), (269, 75020260), (538, 37510130), (1076, 18755065), (1345, 15004052), (1883, 10717180), (2690, 7502026), (3766, 5358590), (5380, 3751013), (7532, 2679295), (9415, 2143436), (18830, 1071718), (37660, 535859)]