378804920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{728471}}^1$

素因数の和:728495

約数の個数: 32

約数和(自身を含む): 917874720

約数和(自身を除く): 539069800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 728471, 1456942, 2913884, 3642355, 5827768, 7284710, 9470123, 14569420, 18940246, 29138840, 37880492, 47350615, 75760984, 94701230, 189402460, 378804920]

約数ペア:

[(1, 378804920), (2, 189402460), (4, 94701230), (5, 75760984), (8, 47350615), (10, 37880492), (13, 29138840), (20, 18940246), (26, 14569420), (40, 9470123), (52, 7284710), (65, 5827768), (104, 3642355), (130, 2913884), (260, 1456942), (520, 728471)]