80159820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{102769}}^1$

素因数の和:102794

約数の個数: 48

約数和(自身を含む): 241715040

約数和(自身を除く): 161555220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 102769, 205538, 308307, 411076, 513845, 616614, 1027690, 1233228, 1335997, 1541535, 2055380, 2671994, 3083070, 4007991, 5343988, 6166140, 6679985, 8015982, 13359970, 16031964, 20039955, 26719940, 40079910, 80159820]

約数ペア:

[(1, 80159820), (2, 40079910), (3, 26719940), (4, 20039955), (5, 16031964), (6, 13359970), (10, 8015982), (12, 6679985), (13, 6166140), (15, 5343988), (20, 4007991), (26, 3083070), (30, 2671994), (39, 2055380), (52, 1541535), (60, 1335997), (65, 1233228), (78, 1027690), (130, 616614), (156, 513845), (195, 411076), (260, 308307), (390, 205538), (780, 102769)]