78826840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^2\times {\mathrm{439}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 180457200

約数和(自身を除く): 101630360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 439, 536, 670, 878, 1340, 1756, 2195, 2680, 3512, 4390, 4489, 8780, 8978, 17560, 17956, 22445, 29413, 35912, 44890, 58826, 89780, 117652, 147065, 179560, 235304, 294130, 588260, 1176520, 1970671, 3941342, 7882684, 9853355, 15765368, 19706710, 39413420, 78826840]

約数ペア:

[(1, 78826840), (2, 39413420), (4, 19706710), (5, 15765368), (8, 9853355), (10, 7882684), (20, 3941342), (40, 1970671), (67, 1176520), (134, 588260), (268, 294130), (335, 235304), (439, 179560), (536, 147065), (670, 117652), (878, 89780), (1340, 58826), (1756, 44890), (2195, 35912), (2680, 29413), (3512, 22445), (4390, 17956), (4489, 17560), (8780, 8978)]