489580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 1270080

約数和(自身を除く): 780500

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 269, 364, 455, 538, 910, 1076, 1345, 1820, 1883, 2690, 3497, 3766, 5380, 6994, 7532, 9415, 13988, 17485, 18830, 24479, 34970, 37660, 48958, 69940, 97916, 122395, 244790, 489580]

約数ペア:

[(1, 489580), (2, 244790), (4, 122395), (5, 97916), (7, 69940), (10, 48958), (13, 37660), (14, 34970), (20, 24479), (26, 18830), (28, 17485), (35, 13988), (52, 9415), (65, 7532), (70, 6994), (91, 5380), (130, 3766), (140, 3497), (182, 2690), (260, 1883), (269, 1820), (364, 1345), (455, 1076), (538, 910)]