619440020

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1\times {\mathrm{683}}^1$

素因数の和:1160

約数の個数: 48

約数和(自身を含む): 1316202048

約数和(自身を除く): 696762028

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 331, 548, 662, 683, 685, 1324, 1366, 1370, 1655, 2732, 2740, 3310, 3415, 6620, 6830, 13660, 45347, 90694, 93571, 181388, 187142, 226073, 226735, 374284, 452146, 453470, 467855, 904292, 906940, 935710, 1130365, 1871420, 2260730, 4521460, 30972001, 61944002, 123888004, 154860005, 309720010, 619440020]

約数ペア:

[(1, 619440020), (2, 309720010), (4, 154860005), (5, 123888004), (10, 61944002), (20, 30972001), (137, 4521460), (274, 2260730), (331, 1871420), (548, 1130365), (662, 935710), (683, 906940), (685, 904292), (1324, 467855), (1366, 453470), (1370, 452146), (1655, 374284), (2732, 226735), (2740, 226073), (3310, 187142), (3415, 181388), (6620, 93571), (6830, 90694), (13660, 45347)]