338774020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{1373}}^1$

素因数の和:1481

約数の個数: 72

約数和(自身を含む): 781481736

約数和(自身を除く): 442707716

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 169, 260, 292, 338, 365, 676, 730, 845, 949, 1373, 1460, 1690, 1898, 2746, 3380, 3796, 4745, 5492, 6865, 9490, 12337, 13730, 17849, 18980, 24674, 27460, 35698, 49348, 61685, 71396, 89245, 100229, 123370, 178490, 200458, 232037, 246740, 356980, 400916, 464074, 501145, 928148, 1002290, 1160185, 1302977, 2004580, 2320370, 2605954, 4640740, 5211908, 6514885, 13029770, 16938701, 26059540, 33877402, 67754804, 84693505, 169387010, 338774020]

約数ペア:

[(1, 338774020), (2, 169387010), (4, 84693505), (5, 67754804), (10, 33877402), (13, 26059540), (20, 16938701), (26, 13029770), (52, 6514885), (65, 5211908), (73, 4640740), (130, 2605954), (146, 2320370), (169, 2004580), (260, 1302977), (292, 1160185), (338, 1002290), (365, 928148), (676, 501145), (730, 464074), (845, 400916), (949, 356980), (1373, 246740), (1460, 232037), (1690, 200458), (1898, 178490), (2746, 123370), (3380, 100229), (3796, 89245), (4745, 71396), (5492, 61685), (6865, 49348), (9490, 35698), (12337, 27460), (13730, 24674), (17849, 18980)]